Koi Treats

Koi Treats FAQs

What are koi treats?

Koi treats are supplementary foods used to add variety to a koi or pond fish feeding routine. They are usually fed in small amounts alongside a proper complete food, rather than replacing the main diet. Popular options include dried shrimp, gammarus, mealworms and silkworm pupae.

Treats can be useful for hand feeding, encouraging fish to come to the surface and giving larger koi an occasional protein-rich snack. For everyday feeding, use a suitable koi food as the main diet.

Are koi treats good for koi?

Koi treats can be good for koi when they are fed in moderation and the fish are active enough to digest them properly. Natural treats can add variety, encourage feeding response and make it easier to observe fish closely at the surface.

They should not be overused. Treats still add waste to the pond, so they should be fed carefully and only as part of a balanced routine.

Are koi treats a complete food?

Most koi treats are not complete foods. They are designed as extras, snacks or supplements, not as the main daily diet. A complete food is formulated to provide balanced nutrition for regular feeding.

For the main diet, choose a staple or complete koi food. Treats can then be used occasionally for variety, hand feeding or to encourage confident feeding behaviour.

How often should I feed koi treats?

Koi treats should normally be fed occasionally rather than every time you feed the pond. Once or twice a week can be enough for many ponds, although this depends on fish activity, water temperature and how heavily the fish are being fed overall.

If you use treats more often, keep the portions small and reduce the main food slightly so the total amount of food does not become too high.

How much koi treat food should I feed?

Feed only a small amount that the fish will eat quickly. Treats should feel like a small extra, not a full meal. If treats are left floating, sinking or breaking apart, you are feeding too much.

Because treats can be rich, especially insect or shrimp-based foods, it is better to underfeed than overfeed. Uneaten treats should be removed where possible.

When is the best time to feed koi treats?

The best time to feed koi treats is when the fish are active, coming to the surface and already feeding well on their normal food. Treats are usually best during milder and warmer feeding periods rather than cold weather.

Avoid feeding treats when fish are slow, sitting low in the pond, stressed or ignoring food. In those cases, check the pond before offering more food.

Can I feed koi treats every day?

It is usually better not to feed koi treats every day unless the amounts are very small and the pond conditions are excellent. Treats are supplementary foods and should not take over from the main diet.

If fish start refusing their complete food because they are waiting for treats, reduce the treats and return to a more balanced feeding routine.

Can koi treats cause water quality problems?

Yes, koi treats can cause water quality problems if they are overfed or left uneaten. Any food added to the pond will eventually become waste, whether it is a complete pellet or a natural treat.

Use regular water testing if you are feeding more heavily, especially in stocked koi ponds. If ammonia or nitrite appear, reduce or stop feeding until the pond is stable again.

Can koi treats make pond water cloudy?

Koi treats can contribute to cloudy water if too much is fed, if pieces break apart, or if the pond filter cannot process the extra waste. This is more likely when treats are fed on top of a normal full feeding routine.

If the water becomes cloudy, reduce treats, check the filter and remove any uneaten food. Cloudy water is often a sign that the pond is being fed more than it can handle.

Should koi treats float or sink?

Floating koi treats are usually easier to manage because you can watch the fish feed and remove anything left uneaten. They are also useful for hand feeding and checking fish behaviour.

Sinking treats can be useful for shy fish, but they are harder to monitor. If you need sinking options, compare them with sinking koi food and feed carefully so food does not collect on the pond floor.

What are the best koi treats?

The best koi treats are natural, easy for your fish to eat and suitable for the pond conditions. Dried shrimp, gammarus, mealworms and silkworm pupae are popular choices because many koi find them attractive.

The best option also depends on fish size. Large koi can manage bigger treats, while small koi and goldfish may need smaller pieces.

What are natural koi treats?

Natural koi treats are usually dried animal-based or insect-based foods that add variety to the diet. Examples include dried shrimp, gammarus, mealworms and silkworm pupae.

They are best used as occasional extras alongside a complete pellet food. Natural does not mean unlimited, so feed them in small amounts and avoid overfeeding.

Are dried shrimp good for koi?

Dried shrimp can be a good occasional treat for koi because they are attractive, protein-rich and easy for many fish to recognise as food. They are often used to encourage surface feeding and add variety.

They should be fed as a treat, not as the full diet. A balanced daily food should still form the main part of the feeding routine.

Are gammarus good for koi?

Gammarus are small freshwater crustaceans often used as a natural fish treat. Many koi and pond fish find them very appealing, and they can be useful for adding variety to the diet.

Because gammarus are a treat food, feed them lightly. Too much can add unnecessary waste, especially in ponds with weaker filtration.

Are mealworms good for koi?

Dried mealworms can be a popular treat for koi and larger pond fish. They are protein-rich and can encourage confident surface feeding, especially in warmer conditions.

Mealworms should be fed sparingly. They are not a complete diet, and overfeeding rich treats can put extra strain on the pond filter.

Can koi eat silkworm pupae?

Yes, koi can eat silkworm pupae, and they are widely used as a rich treat for koi. They are usually better suited to warmer feeding periods when fish are active and digesting food well.

Silkworm pupae are rich, so they should be offered in small amounts. They are best used as an occasional treat rather than a daily staple food.

Are insect treats good for koi?

Insect-based treats such as mealworms and silkworm pupae can be good occasional foods for koi, especially during the warmer months. They add variety and can encourage fish to feed confidently.

They should still be used carefully. Insect treats can be rich, so avoid feeding large amounts or using them to replace a proper complete food.

Can koi treats help with hand feeding?

Yes, koi treats are very useful for hand feeding because many koi find them highly attractive. Floating treats are especially helpful because the fish can see them easily and you can gradually build their confidence.

Start slowly and be patient. Feed from the same area of the pond and avoid sudden movements. Do not overfeed just because the fish become friendly.

Can koi treats help tame koi?

Koi treats can help koi become more confident around people, especially when used regularly in small amounts. Fish often learn to associate the person feeding them with a favourite food.

This works best in calm ponds where fish feel safe. Predator stress, poor water quality or sudden movements can make koi nervous even if treats are offered.

Can goldfish eat koi treats?

Goldfish can often eat koi treats if the pieces are small enough and suitable for pond fish. Shrimp, gammarus and smaller natural treats may be accepted by goldfish in mixed ponds.

Large mealworms or silkworm pupae may be too big for smaller goldfish. Break treats into smaller pieces where appropriate and make sure all fish can feed safely.

Are koi treats suitable for small koi?

Koi treats can be suitable for small koi if the treat size is appropriate. Smaller fish need smaller pieces that they can eat easily without struggling or being pushed aside by larger fish.

For small koi, avoid large, hard or overly rich treats. A small floating pellet from a complete food may be better for regular feeding.

Are koi treats suitable for large koi?

Yes, koi treats are often especially popular with larger koi. Bigger fish can usually manage larger treats such as whole shrimp, mealworms or silkworm pupae more easily than smaller fish.

Even for large koi, treats should be controlled. Large fish can eat a lot very quickly, so it is easy to overfeed without realising.

Are koi treats suitable for mixed ponds?

Koi treats can be used in mixed ponds, but choose treats that suit all the fish. Mixed ponds often contain koi, goldfish, shubunkins and other ornamental fish of different sizes.

Smaller treats or broken pieces are usually easier in mixed ponds. Make sure larger koi do not take everything before smaller fish have a chance to feed.

Can sturgeon and sterlet eat koi treats?

Sturgeon and sterlet should not rely on koi treats as part of their main diet. They need a suitable sinking food that reaches them properly and is designed for their feeding style.

If you keep sturgeon or sterlet, use a dedicated sturgeon and sterlet food. Koi treats may be ignored by sturgeon or eaten by koi before they reach the bottom.

Can I feed koi treats in spring?

Koi treats can be fed in spring once the fish are active and feeding normally, but they should be used cautiously. Early spring feeding should usually be light because fish digestion and filter activity are still building up after winter.

A dedicated wheatgerm koi food is often a better main choice in spring. Treats can be added later when the fish are feeding confidently.

Can I feed koi treats in summer?

Summer is often the best time to feed koi treats because fish are active and more able to digest richer foods. Treats can be used for hand feeding, variety and observing fish closely at the surface.

During heatwaves, still be careful. Warm water holds less oxygen, and heavy feeding can make oxygen and waste problems worse.

Can I feed koi treats in autumn?

Koi treats can be fed in early autumn if the fish are still active and the water remains mild. As temperatures drop, treat feeding should be reduced and lighter seasonal foods should become the focus.

If fish are slowing down, do not keep offering rich treats. Switch towards cooler-weather feeding and reduce portions gradually.

Can I feed koi treats in winter?

In most unheated outdoor ponds, koi treats are not suitable for winter feeding. Koi often become inactive in cold water and may stop feeding altogether. Rich treats are not appropriate if the fish are slow or dormant.

If the fish are not actively feeding, do not add treats to the pond. Uneaten food can break down and damage water quality.

Should I feed koi treats during a heatwave?

Be careful with treats during a heatwave. Warm water holds less oxygen, and treats add extra food waste at a time when fish and filters may already be under stress.

Make sure the pond has strong pond aeration and reduce feeding if fish are gasping, hanging around air stones or behaving unusually.

Should I feed treats after a pond treatment?

After a pond treatment, feeding should be cautious. Fish may be stressed and some treatments may advise reduced feeding for a period. Treats are usually best avoided until the fish are active and water quality is stable.

Follow the treatment instructions first. Once fish are feeding normally again, treats can be reintroduced in small amounts.

Can I feed treats after adding new fish?

It is better to wait until new fish have settled before offering treats. New koi can be stressed after transport and may not feed properly straight away.

Once they are active and feeding confidently on a suitable main food, a small treat can help encourage them to come to the surface. Do not use treats to force feeding too soon.

Can I feed treats after cleaning the pond?

After a pond clean, feed lightly at first. The fish may be unsettled and the pond filter or water chemistry may have been disturbed, depending on the level of cleaning carried out.

Avoid rich treat feeding immediately after major work. Test the water and wait until fish are behaving normally before returning to treats.

Can I feed treats after a water change?

After a normal water change, small amounts of treats may be fine if the water has been dechlorinated and the fish are behaving normally. After a large water change, it is safer to feed lightly and let the pond settle.

If fish appear stressed or the water parameters have changed, avoid treats and return to normal feeding gradually.

Can I mix koi treats with staple food?

Yes, koi treats can be fed alongside staple koi food, but treats should remain a small extra. The staple food should provide the balanced daily diet, while treats add variety.

Do not simply add treats on top of a full feed every time. If you feed treats, reduce the amount of main food slightly so the overall feeding level stays sensible.

Can I feed treats with growth koi food?

Treats can be used alongside growth koi food during warm-weather feeding, but be careful because both growth foods and treats can be rich. The pond filter must be able to handle the total food load.

If your aim is growth, the main diet should still be a suitable growth food. Treats should only be a small extra.

Can I feed treats with colour-enhancing food?

Yes, treats can be fed alongside colour-enhancing koi food if the fish are active and water quality is good. Some natural treats may also support general condition and feeding response.

If colour is the main goal, use a dedicated colour food as part of the main routine. Treats should not replace a properly formulated colour diet.

Can I feed treats with wheatgerm food?

Treats can be used very lightly with wheatgerm koi food during cooler periods, but be cautious. Wheatgerm is used because digestion is slower, while many treats are richer.

If the water is cool, wheatgerm should usually remain the main food and treats should be reduced or avoided.

Can I feed treats with probiotic koi food?

Yes, treats can be fed alongside health and probiotic koi food as long as the main diet remains balanced. Probiotic foods are usually chosen for digestion and condition, while treats are mainly for variety and feeding response.

Keep treat feeding moderate. Digestive-support food does not cancel out the effect of overfeeding treats.

Can koi treats be used in an automatic feeder?

Most natural koi treats are not ideal for automatic feeders because they may be irregular in shape, too large, too light or prone to jamming. Automatic feeders normally work best with dry, consistent pellets.

If you want controlled daily feeding, use suitable pellets in an automatic fish feeder and offer treats by hand separately.

Are koi treats high in protein?

Many koi treats, especially shrimp, gammarus, mealworms and silkworm pupae, are naturally protein-rich. This can be useful during warmer feeding periods when fish are active.

High protein does not mean they should be fed heavily. Rich treats should be used in small amounts and not as a replacement for a complete food.

Can koi treats help koi grow?

Koi treats can add extra nutrition and feeding interest, but they are not the best way to manage growth. Growth is better supported by a complete growth food, warm water, good oxygen, suitable filtration and controlled feeding.

Treats can be part of a feeding routine, but they should not become the main growth diet.

Can koi treats improve colour?

Some natural treats may help support general condition, and a healthy fish often looks better, but treats are not usually as targeted as a proper colour-enhancing food. Colour development depends on genetics, water quality, sunlight and diet.

If colour support is your main aim, use a dedicated colour food and keep treats as a small extra.

Can koi treats help fish health?

Koi treats can support variety and feeding response, but they should not be treated as a health product or medicine. Fish health depends on water quality, oxygen, filtration, correct feeding and low stress.

If fish are unwell, test the water and investigate the cause. Do not rely on treats to solve health problems.

Should I feed treats if ammonia or nitrite is present?

No, if ammonia or nitrite is present, reduce or stop feeding until the problem is under control. Treats add more waste and can make the situation worse.

Use pond water test kits to monitor the pond, check the filter and increase aeration if the fish or filter are under stress.

What should I do with uneaten koi treats?

Remove uneaten koi treats where possible. Uneaten treats can soften, sink, break apart and add waste to the pond.

If treats are regularly left uneaten, feed less, try a smaller size or stop offering them until the fish are feeding more confidently.

How should I store koi treats?

Store koi treats in a cool, dry place with the bag or tub sealed properly. Keep them away from damp, direct sunlight, pests and strong smells.

Because many natural treats are dried products, poor storage can affect smell, texture and freshness. Do not feed anything that looks mouldy, damp or spoiled.

Do koi treats go off?

Yes, koi treats can go stale or spoil if stored badly or kept too long after opening. Dried treats should remain dry, clean and fresh-smelling.

Check the best-before date and storage instructions. If treats smell rancid, look mouldy or feel damp, do not feed them to fish.

Should I buy a small or large tub of koi treats?

Buy a size that suits how often you will use the treats. Smaller tubs are better for occasional feeding, smaller ponds or trying a new treat. Larger tubs can be better value if you have many large koi and feed treats regularly.

Freshness matters, so do not buy more than you can sensibly use within a reasonable time once opened.

Which koi treat should I choose?

Choose koi treats based on fish size, feeding style and how you want to use them. Shrimp and gammarus are good natural surface treats, mealworms and silkworm pupae are richer options for larger fish, and smaller treats are better for mixed ponds.

For the main diet, return to the wider koi food range and choose a complete food that suits the season and pond conditions.

Why buy koi treats from That Pond Guy?

That Pond Guy stocks koi treats alongside complete koi foods, seasonal foods and feeding equipment, so it is easy to build a sensible feeding routine in one place. The aim is to offer practical products for real garden ponds, koi ponds and mixed ornamental ponds.

Use the products below to choose a treat that suits your fish, then feed it in moderation alongside a proper daily diet.