How Often to Feed Garlic to Fish?


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Garlic is considered the king of medicinal plants. This potent vegetable has anti-fungal, anti-bacterial, anti-viral, and antiprotozoal properties. In addition, it helps boost the immune system, heightens the digestibility of ingredients, improves body weight gain, lowers bad cholesterol, and supports mental and physical health. But what about garlic for fish? Does it have any health benefits, as some people claim? and if yes, how often should one feed garlic to fish?

This article aims to answer all your questions regarding the effects of garlic on fish, including how much of it is necessary for optimal benefits and how often one should feed garlic to fish. Garlic is a vital ingredient in the making of quality fish foods. When the correct amount is used, this single ingredient plays a significant role in your fish’s long-term health. In addition, it makes food attractive to fish.

The Growing Demand for Fish and Its Consequences

The last few years have seen a drastic demand for affordable, healthy, high-quality seafood. Fish is a highly nourishing food and a rich source of animal proteins. This has led to an increase in the growth of commercial fish farming to meet the growing demand. Aquaculture alone contributes to about 47% of the world’s aquatic animal production. Out of this, fish farming takes the lion’s share, producing about 54.3 million tons, followed by mollusk and crustaceans.

Advancements in Food Nutrition

Good animal nutrition is essential to producing healthy, high-quality products. This phenomenon is especially true in fish farming, where feed represents about 40 to 50% of the total production cost. To grow, you need to fish a balanced diet. A balance of nutrients through adequate feed aids in increasing fish’s weight while reducing their mortality rate. This growth is only possible if the fish are fed sufficient carbohydrates to thrive in length and weight.

To improve fish production in fisheries and achieve maximum yields, fish farmers need to invest in quality fish feeds. These foods help fish multiply and achieve maximum weight in the shortest time possible. Other than providing quality feed, farmers need to add new compounds like garlic that improve food conversion efficiency and elevate the general condition for healthy fish growth and optimal maintenance.

Also, over the last few years, the nutrition of fish has advanced greatly with the development of species-specific diets. These diet formulations are aimed to support the aquaculture industry and meet the ever-growing demand for safe, affordable, high-quality seafood products. But with the intensification of aquaculture comes the problem of overcrowding.

Fish overcrowding comes with its own set of disadvantages. For instance, it favors the growth and spread of disease-causing microorganisms, increasing the risk of disease outbreaks and consequent mortality. Moreover, if these pathogenic microorganisms are not controlled, it often leads to severe economic losses. Usually, fish farmers lose about 40 to 60% of their production to infectious diseases.

The Use of Antibiotics to Combat Disease Breakouts

Fish farmers used chemotherapeutic agents like antibiotics for many years to control disease breakouts. While antibiotics have proved to be an effective remedy for disease outbreaks, the positive results have been short-lived. How?

The excessive use of antibiotics in treating fish diseases has made aquatic pathogens resistant to these treatments. Also, the use of antibiotics to promote fish growth is being restricted by many governments because of the harmful effects these chemicals have on human health. Because of their negative impacts, more and more fish farmers are looking for safer alternatives to antibiotics that keep fish healthy such as plant-based immunostimulants.

Plants are a natural source of chemicals that are both safe and affordable to use. The beneficial effect of bioactive plant substances in animal nutrition may include stimulating feed intake and appetite, activating immune responses and anti-viral, antioxidant, and anti-bacterial actions, and improving endogenous digestive enzyme secretion.

The Use of Plants for Animal Health

Using plants to improve animal health and treat diseases is a traditional practice. Plus, modern science has validated some of its applications. For example, plants provide a more natural and environmentally friendly alternative to counteract infectious diseases instead of using antibiotics and synthetic substances. In addition, previous evidence has demonstrated that plants and their extracts help to:

  • Enhance the immune system
  • Stimulate appetite in animals
  • Have antimicrobial properties
  • Enhance growth
  • Have anti-inflammatory properties
  • Are anti-tumoral
  • Efficiently enhance nutrient utilization
  • Improve physiological status
  • Have immunostimulant and health-promoting properties

Most of these beneficial properties are associated with the bioactive compounds found in plants. These compounds include terpenoids, tannins, alkaloids, flavonoids, saponins, essential oils, organosulphur compounds, and polysaccharides.

In the industrial fish business, you find that each pond hosts large numbers of fish. In these environments, fish are particularly susceptible to disease and parasite transmission. Viruses, fungus, bacterial infections, and parasites spread fast when fish are raised at high concentrations. This can be likened to livestock disease issues, especially those threatening general human health, like the swine flu.

Production of fish on a commercial scale requires diligent management of diseases. Previously, industrial aquaculture relied on antimicrobial medication to fight pathogens and keep fish healthy. However, this strategy is marred by evolution, with marine pathogens beginning to resist antimicrobial drugs. Garlic’s potent properties may help boost fish health as the aquaculture industry advances into the future.

About Garlic

Garlic is one of the most potent herbs known to man. This perennial plant belongs to the family Liliaceae. Each garlic plant yields one garlic bulb, consisting of several small cloves bunched into a bulb garlic head. Each clove is covered with a thin, paper-like coating.

Garlic has been used for centuries as a flavoring agent in different cuisines across the globe, traditional medicine, and food to improve the overall health of humans. With regard to this, humans have been using garlic for more than 7000 years as a food condiment and for medicinal purposes. It was also used to enhance mental and physical health. Garlic contains various organosulfur compounds like allicin, s-allyl cysteine, diallyl disulfide, ajoene, and S-methyl cysteine sulfoxide, giving it its healing powers.

While some people cannot get enough of this polarizing vegetable and add it to anything from pizza to cake and organizing festivals centered around it, for others, the pungent smell of garlic is a bit too much. But love it or hate it, garlic offers many health benefits for humans, and it is attracting increasing attention in the world of fish farming.

For humans, garlic aids in purifying blood, lowering cholesterol levels, boosting the immune system, preventing strokes and heart attacks, detoxification, lowering blood pressure, destroying cancer cells, as an antibiotic, muscle relaxant, anti-fungal, and killing harmful bacteria and parasites.

The same range of benefits applies to fish. Compared to other medicinal plants, garlic’s application has proven to be the most effective in animal health. This is due to its various therapeutic properties, especially its broad spectrum against pathogens and immunostimulating effect. As a result, garlic provides a much more effective and safe way to treat your fish while building its immune system.

Nutritional Components of Garlic

Garlic’s composition records an average of

  • 65% water compared to over 85% of fresh vegetables
  • 27.5% carbohydrates
  • 4.7% fiber
  • 2-3% organosulfur compounds
  • 2% protein.

What Gives Garlic Its Healing Powers?

Garlic is a root vegetable with less water content and more bioactive chemicals compared to most vegetables. Most of garlic’s properties are attributed to organosulfur compounds. The most common organosulfur compounds in garlic include S-allyl cysteine, S-allyl-mercaptocysteine, and allicin. These compounds play an essential role in their ability to ward off diseases. Therefore, they are abundant in aged garlic extracts and garlic maceration.


Each garlic clove contains a compound known as alliin and an enzyme called alliinase. In a whole or undisturbed clove of garlic, these two compounds sit dormant in different areas of the plant. However, once the clove is crushed or cut, the two compounds meet creating a potent compound known as allicin.

Allicin is a highly volatile, unstable, fat-soluble organosulfide and cytotoxic compound. This compound is responsible for garlic’s fiery taste and pungent smell. It is also responsible for some of garlic’s pharmacological and therapeutic properties.

Features of Allicin

Allicin is the most active compound in garlic and is associated with anti-viral, anti-fungal, anti-parasitic, antiseptic, and anti-bacterial activities. What this means is that allicin can protect against viruses (anti-viral, bacteria (antibiotic, parasites (anti-parasitic and fungus(anti-fungal). It also protects against the toxic free radicals that break down proteins, fats, and DNA. Allicin is also responsible for garlic’s pathogen-fighting properties. This makes allicin an attractive compound for aquaculture, which experiences most, if not all, of these concerns.

Can Fish Eat Garlic?

Absolutely! Garlic is a safe and healthy vegetable to feed fish. Garlic contains medicinal properties, including anti-fungal, anti-viral, anti-parasite, and anti-bacterial properties. Fish farmers have been using garlic for years to help ward off a list of aquatic ailments, including infections, parasites, and generally, support to the immune system.

Garlic’s anti-fungal, anti-viral and anti-bacterial properties work to treat and cure your sick fish. What’s more, garlic increases the appetite and boosts the immunity of a fish. Garlic also helps decrease the potency, severity, and frequency of your fish’s health problems. You should feed this potent food to increase the quality of life of your fish.

Benefits of Feeding Garlic to Fish

More and more researchers are looking into the effects of incorporating garlic into aquaculture. In several studies on the impact of garlic on fish, it was found that fish-fed garlic showed higher survival rates than fish, not fed garlic. Their survival was attributed to the garlic’s contribution to fighting off pathogen infections. Some of the benefits of providing garlic to fish include:

Boosts Fish Immune System

As mentioned earlier, the use of antibiotics as a disease control method has resulted in the emergence of antibiotic-resistant pathogens. The use of garlic as an immunostimulant is an alternative option to reduce the use of drugs. In addition, supporting the immune system helps the fish fortify itself and potentially heal from diseases.

Immunostimulants can increase the performance of fish growth and disease control. Using raw garlic or garlic extract as additives in fish feeds increases cellular and humoral responses in fish. Garlic works in two significant ways to boost the fish immune system:

  • It boosts their immune system and helps them fight off illness
  • It gets fish to eat more, which in turn, helps with their immune system, indirectly

These abilities are attributed to the organosulfur compounds fructans and polysaccharides. These compounds increase immunity and the activity of natural killer cells TNF and IL-2. Allicin is associated with stimulating the immune system and promoting growth. It also supports healthy gut microbiomes in aquatic fish.

Accumulating evidence agrees that fish reared with garlic is often more extensive and healthier than fish without.

One study found that the administration of garlic extract in the food of guppy fish helped the fish increase the skin mucus’ immune parameters, which is the first barrier against pathogens. Also, adding garlic increased food consumption and improved protein and amino acid utilization in shrimp compared to organisms fed a fishmeal diet only.

Enhance Growth

Antibiotics, hormones, and several other chemicals have been used for growth promoters, anti-bacterial use, and other purposes in aquatic animals. But their use in marine animals cannot be recommended due to their residual effects on the muscles of fish and prawns. Plants like garlic are a natural source of safer and more potent chemicals needed for proper fish growth and health. In addition, plants have been reported to promote activities like antistress, appetite stimulation, and immunostimulation in aquaculture practices.

The inclusion of garlic in fish feeds also influences growth performance thanks to the organosulfur compounds in garlic, like allicin. Allicin is a potent stimulant responsible for the smell of garlic. Garlic smell makes food enticing for fish, which increases the intake of food in fish. Garlic also contains iodine salts, which positively affect fish’s circulatory and skeletal systems. The effect of garlic on growth performance has been tested in different fish species.

Studies on garlic as an alternative growth promoter in livestock production have been conducted and proven to offer beneficial effects on growth and digestibility. For instance, one study fed tilapia with a diet supplemented with garlic for two months. They reported an increase in tilapia’s quality, survival rate, and shelf life. A different study fed garlic diets containing garlic to rainbow trout. The researchers noted that the fish’s weight gain and specific growth rate were significantly improved. As a growth promoter in Nile Tilapia, dietary garlic improved body weight gain, feed intake, and efficiency.

A different study published in the National Library of Medicine to investigate the effects of dietary garlic on growth found that dietary garlic extract can help improve growth and feed utilization of juvenile sterlet surgeons.

Provides Antimicrobial Properties

Garlic has been used in fish farming as a natural agent because of its various properties. For instance, adding garlic to fish diets influences the immune system with a positive response from the host. As a result, their resistance to disease and stress is increased. In the same way, garlic can also influence the gut microbiota composition. Although the information on the effects of garlic on fish microbiota is still minimal, it is still relevant considering the gut microbiota as an annex organ of fish.

One study fed rainbow trout with diets containing different concentrations of garlic. The group that received the highest dose of garlic in the diet showed improved survival rates against infection.

Anti-bacterial Benefits

Garlic has been widely studied for its effectiveness in treating bacterial infections in fish—the anti-bacterial properties of garlic result from the reduction of lipid biosynthesis and RNA synthesis in bacteria. As a result, it inhibits the growth of both gram-positive and gram-negative bacteria.

The antibacterial activity of garlic bestowed by allicin has shown the ability to prevent the development of gram-positive bacteria like Staphylococcus aureus and gram-negative bacteria like Escherichia coli and Aeromonas salmonicida.

Antioxidants Properties

Garlic saponins and phenols are compounds that provide antioxidant activity. These compounds inhibit the formation of free radicals, reinforce the uptake mechanisms of endogenous radicals and increase cellular antioxidant enzymes like superoxide dismutase. Also, using garlic as a feed supplement improves the antioxidant system of fish.

Anti-parasitic Properties

Besides diseases, parasites are another major obstacle in fish farming that requires serious attention. Wild fish come equipped with an entire complement of parasitic nematode worms in their intestines. In healthy fish, these worms do not cause any adverse side effects. However, in wild-caught fish that have been starved for a while due to shipping, these worms can kill them. Usually, the mysterious death of new or wild fish can often be attributed to these worms. As such, pest control must be observed as keenly as possible so that outbreaks that cause fish mortality do not occur.

Some water parasites impair the productivity of fish by leading to infection or acting as a vector for other diseases. Most fish farmers treat these pests with chemicals, primarily pesticides. But these chemicals have adverse effects on the overall aquatic environment. So these farmers are looking for safer alternatives to treat pesticides instead of chemicals.

In a specific study, fish infected with parasites swam through a garlic bath. After a few minutes of staying in the garlic water, the external parasites were killed, leaving the fish parasite free.

There are also many scientific studies on the effects of garlic’s allicin compound in aquarium diets. These studies support the conclusion that allicin efficiently creates fish resistance to parasites.

A study conducted in Egypt by the Central Laboratory for Aquaculture Research found that adding 3% garlic to the fish diet increased their overall digestibility of carbohydrates, fat, and protein. It also helped lower the total bacteria count found in the intestines and muscles of fish. Similar research studies have been conducted worldwide, including in India, Australia, Israel, and more,, showing similar findings.

Anesthetic Properties of Garlic

The anesthetic properties of garlic come in handy during stressful situations. It can be used to calm fish. Other than easing the stress on fish, these properties also effectively boost fish’s immunity.

Anti-viral Properties

In aquatic organisms, the presence of parasites is a recurring issue that affects production. Garlic has been shown to have anti-viral activity. Garlic’s bioactive compounds inhibit or block virus transcription to reduce replication in host cells and improve innate immunity.

Fresh garlic extracts, which provide more allicin levels, have anti-viral activity. Therefore, adding garlic extract to the fish diet leads to a higher immunity and survival rate for fish.

Ajoene is known to be responsible for the anti-viral activity of garlic. Its mechanism blocks the processes dependent on integrins in an infected cell system.

Garlic is An Appetite Stimulant

Most fish love the taste and smell of garlic. It works perfectly to entice sick, stressed, or otherwise finicky eaters. This is why most commercial fish food has some form of garlic mix.


In addition to its numerous properties, garlic in aquaculture became popular due to its low cost, little environmental impact, and easy incorporation into food. Garlic’s low commercial value and accessibility facilitate its use as raw extracts or bioactive compounds on a large scale in aquaculture, either by direct application or incorporation into commercial foods.

Manages Nematodes in Fish

Nematodes are among the earliest known group of helminths in fish. They infect marine, freshwater, and brackish water and can cause substantial damage to the host. Garlic works to disrupt the mobility of nematodes, their reproduction, and food absorption. Parasitic nematodesEvidence has demonstrated that garlic is effective against nematodes. For instance, aqueous garlic extracts can control Angiostrongylus cantonensis and Trichuris muris.

Other Benefits of Garlic to Fish

Besides the numerous health benefits garlic provides to fish, it has also been used to improve the post-harvest quality of fish and its shelf life. Because garlic majorly focuses on harmful bacteria while boosting the production of good bacteria, it can help fish recover from illness to return to total health. Garlic also helps underweight or non-eating fish. In addition, it stimulates the fish’s appetite and helps promote growth.

Garlic Uses to Treat Various Fish Diseases and Pesticides

An effective way to protect your fish against parasites and diseases is by feeding them garlic. To be effective, provide garlic-laced fish food for six weeks consecutively to eradicate these worms. Fortunately, fish love garlic and have no problem eating it all the time.

How it works

Worms cannot metabolize the garlic-laced food. So they slowly starve and die. It takes six weeks to eradicate them all. Besides killing worms, garlic also seems to strengthen and revitalize the fish.

What you’ll need

  • Garlic cloves
  • garlic or lime press
  • quality pellet food


  • Put the pellet in a bowl.
  • Peel the garlic, making sure to take out the papery covers of cloves.
  • Place two or three garlic cloves in the garlic or lime press and squeeze until the garlic is pureed in the bowl.
  • Squeeze as many cloves of garlic as possible to get about 30% garlic to the pellets. Mix the pellet with the garlic puree.
  • Feed the fish

How Much Garlic Should I Give Fish?

The keyword here is moderation. While there are a lot of different recommendations, especially on the internet, the right way is to follow advice from experts and findings from actual studies.

How to Incorporate Garlic Into Your Fish Diet?

While you cannot offer fish your favorite garlic dip or a plate of garlic bread, you can add fresh garlic cloves, oil, aqueous garlic extract, or powder into fish feeds. Of course, a fish keeper can also opt not to feed garlic to their fish and instead simply infuse garlic juice into the water to work topically. But whether you introduce garlic to your fish through their diet or the environment they live in; garlic has proven to be effective in reducing and, where necessary, preventing pathogen infections.

There are several options for feeding garlic to fish. You can give it to them in liquid form, oil, paste, or powder, depending upon what is most convenient for you.

Raw Garlic

This is considered the most effective presentation of garlic to fish. The presence of sulfur compounds in the fat-soluble Allein and water-soluble allicin is bactericidal and fungicidal. In contrast, when subjected to a process such as dehydration, its effectiveness drops to 80% since garlic loses most of its ingredients when exposed to any procedure.

Freshly crushed garlic and garlic oil have proven effective in treating trichomoniasis and gyrodactylosis in tilapia. Therefore, its application can be an effective solution to combat diseases and improve organisms’ health using natural supplies and as an alternative to antibiotics.

In small chunks: Cut your garlic cloves into small pieces or granules that your fish can quickly ingest. Then, float the garlic granules into the water and wait for the fish to come and eat them. Once done, remember to remove the uneaten chunks from the fish tank.

In water: Consider chopping fresh garlic cloves finely with a sharp knife. This way, you will not lose any of the essential oils in garlic. Use one fresh clove of garlic per liter of water or 4 per gallon.

Soak fresh garlic: Smash a fresh clove and put it in the fish food. Let it soak in water for 5-10 mins, then feed it to your fish.

Garlic Powder

Garlic powder is the most used form of garlic in aquaculture. It has been used in the aquaculture of different fish species, including the rainbow trout, spotted grouper, tilapia, catfish, guppy fish, goldfish, and barramundi.

According to a study published in the Wiley Online Library, garlic powder is a promising and effective way to improve digestive ability and fish growth. The powder is generally applied by oral administration, adding it to the feed. The dose ranges from 0.05 g/kg to 40 g/kg feed. Add the garlic powder to fish food and feed it to your fish.

Frozen Food

Frozen food is highly recommended for most aquarium fish. Adding garlic to your frozen food is ideal. To add garlic to frozen food, start by making some garlic paste. Take a few garlic cloves, peel off their papery skin, and crush them to make garlic paste. Next, take any food, be it frozen peas, zucchini, spirulina, or prawns, and add the garlic paste to them. Alternatively, dice or chop garlic and toss them into the fish food mix. Blend the entire garlic-fish food mix and then pour it into small cubes. Freeze these cubes.

Garlic Juice

The primary benefits of garlic juice include:

  • Strengthening the immune system.
  • Promoting growth.
  • Decreasing mortality and improving the overall well-being of the fish.

Garlic juice is made by pressing, blending, or juicing garlic cloves.

How to Make Garlic Juice

  • Take one garlic bulb and break it up into individual garlic cloves. Put the cloves in a garlic shaker. Shake the skin off with this gadget. Pour the skinless cloves out and then wash them clean.
  • Place the peeled garlic cloves in a garlic press or blend them to make garlic puree.
  • Take the puree and place it in a strainer. Strain the juice into a bowl. Remove all matter except for the garlic juice.
  • Finally, use a coffee filter and pour garlic juice over it to get the cleanest form of garlic juice.
  • Your garlic juice is ready for juice.
  • Store the expressed garlic water in the refrigerator for future use. Then, add 1 teaspoon full of garlic juice to a large fish tank, about 80 to 100 gallons.

While adding garlic juice directly into the fish tank is not as efficient as the other ways, it helps improve water quality and overall fish health.

Soak in Garlic Water

This is one of the most effective ways to feed garlic to fish. Soak their regular food in the garlic water for about 5 to 10 minutes before adding it to the tank.

Mix Freshly Crushed Garlic Cloves With Peas

Peas are typical fish food and provide an efficient way to incorporate garlic into their diet. First, peel a clove of garlic and then roll it in aluminum foil. Put the foil in the oven and bake for a few minutes. this will help preserve the garlic juice. Next, take the clove out of the foil paper and crush it into the garlic paste. Add the paste into your bowl of peas and then feed it to your fish.

This is an effective way to keep pathogens away from the fish tank to keep the environment clean and safe for the fish to thrive. Add 2 to 3 cloves of garlic to a larger tank.

Garlic Supplements

Garlic supplements like garlic Guard are another effective way to feed garlic to fish. These products are available in the market with several brand names. Garlic supplements generally come in liquid form. You can add 1 to 2 drops of it to every fish food.

Garlic Oil

Garlic oil has been demonstrated to be an effective anti-ectoparasitic agent. It is effective against protozoa like Trypanosoma, Plasmodium spp., Giardia spp., and Leishmania spp. Garlic oil is obtained through the steam distillation process. The essential oil content in garlic cloves is 0.2 to 0.5%, and it contains sulfide groups such as diallyl trisulfide and DADS.

Aged Garlic Extract

Aged garlic extract is processed differently from the other forms of garlic. For starters, it is allowed to age up to 20 months. During this period, the odorous, harsh and irritating garlic compounds are naturally converted into stable and safe sulfur compounds. In addition, aged garlic extracts contain water-soluble components like SAMC and SAC, stable flavonoids, fat-soluble allyl sulfides saponins, phenolic compounds, and other essential nutrients.

Buy Minced Garlic

You can also purchase a jar of pre-minced garlic at your local grocery store. Express the liquid from the garlic and add it to your fish food mix and feed it to your fish.

How Often Should You Feed Garlic to Fish?

As mentioned earlier, it is critical to determine the correct dose of garlic for your fish. Garlic’s strong taste and smell, given in high doses, can irritate your fish’s mucus membrane. So you cannot give too much in a single feed. Preferably, give garlic once or twice each week.

Tips for Feeding Garlic to Pet Fish

  • The amount of garlic will depend on the purpose of use
  • When treating a sick fish, give garlic for 4 to 5 weeks or until the disease cures
  • For the general sense of improving the health of your fish, feed garlic to fish no more than 1 to 2 times a week.
  • Always add the correct dosage of garlic supplements to avoid overdosing on your fish.
  • Follow instructions to the latter.
  • Homemade garlic paste, garlic juice, or oils are more affordable alternatives to commercially prepared garlic supplements. Just make sure to take care of hygiene during preparation.

How to Grow Your Garlic in 7 Easy Steps

Given the excellent benefits of garlic for fish, it makes sense to grow your own so that you are never short of supply and beat the growing prices of garlic. Also, increasing your garlic ensures that it is fresh, free from chemical treatments, and not genetically modified. The best is that garlic is easy to grow, even with limited space. To grow garlic:

  1. Determine the right time and season to plant garlic: Garlic planting usually takes place in the fall, before the ground freezes.
  2. Prepare planting patch: To grow nice plump heads of garlic, you need to plant your garlic seeds in loose, fertile, and well-draining soil. Garlic also requires a lot of full sun but can tolerate partial shade. Finally, don’t forget to add nutrients to your soil.
  3. Prepare clove seeds: Break apart the cloves from the bulb a few days before planting. Make sure to keep the papery covering on each clove.
  4. Plant your cloves: Plant each clove about 2 inches deep and 4 to 8 inches apart, with the pointy part facing up. Plant in rows spaced 6 to 12 inches apart.
  5. Water and mulch: suitable mulching materials include hay, straw, compost, dry leaves, well-rotted grass clippings, or well-rotted manure. Water the seeds generously and leave them to grow
  6. Plant care: Continue watering the seeds, as newly planted garlic must be kept moist to help proper root development. Ideally, you should water once weekly if no rain has fallen. Reduce the watering as the seasons warm as us garlic needs a hot, dry summer to allow the bulbs to mature. Weed regularly as garlic plants do not like to compete for water and nutrients. and weeding in the spring through summer
  7. Harvest: your bulbs of garlic are ready to harvest once you see the leaves start to turn brown or yellow. Harvest by loosening the soil around each bulb using a garden fork or a shovel. Do not wash off the dirt on your bulbs. Instead, hang the m up in a cool, well-ventilated area away from direct sunlight to cure. Once cured, trim off the tops and roots, brush off any loose soil, and store in a cool, dry place.

In Conclusion

There are conflicting opinions on whether or not garlic is safe for fish. Some studies believe garlic can help boost fish immune systems and be used as a natural parasite repellent. Others believe that garlic is too strong for fish and can cause irritation. If you decide to feed garlic to your fish, it is essential to consult with your veterinarian as well as monitor their health and behavior closely.

Any addition to your fish’s daily feed should only be given if there is evidenced research about its benefits. But you mustn’t go overboard with this. Always give in moderation. Too much garlic can interfere with the balance of bacteria in the digestive system. So, test in small quantities, gradually adding to your food and drink. Do not put an entire head of garlic in your fish’s food if they’ve never had it before. They will not touch it.


Can Fingerlings Eat Garlic?

Yes, but in moderation. Like with any other ingredient, balance is critical. There are many benefits in adding garlic to fish food as soon as you have new fish. The garlic will help build their immune system and help guard against worms.

Is Raw Garlic Safe for Fish?

While most people believe that garlic is poisonous to fish because it is part of the onion family, this cannot be any further from the truth. The composition of garlic is entirely different from that of onion. The main compound in onions that causes issues is called thiosulphate. This compound is available in very tiny quantities in garlic. Plus, dozens of scientific trials have proven beyond reasonable doubt that garlic benefits fish health and well-being.

Does Garlic Help Sick Fish?

Numerous studies prove that garlic has positive effects on common fish diseases. Garlic offers a natural way to improve fish health with minimal environmental impact when used in moderation.

Is Garlic Safe for Freshwater Fish?

Garlic is beneficial for both marine and freshwater fish species. However, freshwater fish appreciate the sulfur compounds in garlic, whereas marine fish may benefit from the antioxidant properties.

Is Raw Garlic Toxic to Goldfish?

Garlic can be fed to goldfish but in moderation. Understanding the potential risks associated with providing garlic to fish is essential. Garlic can be toxic to goldfish if consumed in large quantities. It can cause several health issues for your goldfish, including stunted growth, discoloration, and death in severe cases.

It is also essential to understand that just like garlic can cause allergies in some people, it can also cause allergies in some fish. So it is vital to consult with a veterinarian before feeding garlic to fish.

Does Garlic Eradicate Parasites in Fish?

Garlic is highly effective in treating parasites in fish. Garlic contains allicin, a sulfur compound that destroys parasites. You can add it to your fish tank as a treatment for parasites. Several studies support its use for the treatment and prevention of fish parasites. One of the most common conditions that can be treated with garlic is skin flukes, also known as Neobenedenia sp.

Can Guppies Eat Garlic?

Garlic is safe for guppies. However, it should be administered in lower quantities than other fish species. This is because the antibiotic properties in garlic are effective in combating and preventing common guppy diseases.

Is Garlic Safe for Discus Fish?

Yes. Garlic is safe for discus fish and works well to boost its immune system.

Is Garlic Good for Koi Fish?

Garlic is a good food supplement for fish as it helps keep them healthy while also fighting off infections.