Frozen fish food: test, comparison and buying guide

You want to give your fish some variety in their diet and are now trying to figure out what fish frozen food is all about? Then you are exactly right here.

Here you will not only find out what frozen fish food is, but also everything about feeding, shelf life or which frozen food is suitable for which species of fish. In addition, we have looked at some fish frozen food tests and compiled them clearly for you.

The best frozen food mix: SAHAWA Quartet
" The most popular frozen fish food varieties united in one blister."

The best frozen food cyclopes in a stock pack: Cool Fish Cyclops 3 kilogram

"All aquarium inhabitants benefit from the good price-performance ratio."

The best frozen food supplement for carnivorous fish: Petman Fish Beef Heart Blister

"Carnivores enjoy the protein-rich variety."

The best fish frozen food package with free choice of varieties: SAHAWA 2 Kilogram Free Choice Fish Food
"Due to the free choice of varieties, a varied feeding is guaranteed."

The best frozen food Artemia:
" Instead of pieces whole Artemia are used. Quality is written large here."

The best discus frozen food to intensify red coloration: Mieling’s Red Intensive

"After only a few feedings the colors of the discus fish shine stronger than before."

The most important facts in a nutshell

  • Frozen fish food should be an integral part of your fish’s diet.
  • It is very similar to natural prey and contains many nutrients.
  • Frozen fish food should always be fed defrosted.
  • When storing frozen food, the cold chain must never be interrupted.
  • Defrosted you should use the food as soon as possible.
  • Vary the frozen food varieties to provide your fish with all the nutrients they need.

The best frozen fish food: Favorites of the editors

The number of varieties and brands of frozen fish food is vast. So that you do not have to work for hours through offers, we have compiled our favorites for you here:

The best frozen food mix: SAHAWA Quartett

What we like:

  • the most popular frozen foods in one package
  • All types are suitable for a wide range of fish species
  • due to the variety the fish get more nutrients
  • professional cooling during shipping
  • free from preservatives or chemical additives

What we do not like

  • Spacing between the individual rows is very small, so you have to be careful not to damage other cubes when taking out the portion

Editorial assessment

The SAHAWA Frozen Food Quartet is delivered with 5 blisters. One blister contains 12 portions of red mosquito larvae, 6 portions of white mosquito larvae, 6 portions of Artemia and 6 portions of Daphnia. One blister weighs 100 grams, so that one portion has a weight of about 3.3 grams.

normally a blister contains only one kind of frozen food at a time. It is all the more practical that four varieties are combined here. These are all frozen varieties of food, which are eaten by most fish. Accordingly, you don’t have to worry about one variety going untouched.

In order to be able to offer a varied diet, different species should be fed as far as possible. However, as there is often a lack of storage facilities to store large quantities, not every keeper can provide a balanced diet. Therefore, it is also an advantage from a spatial point of view to have several varieties available in one blister pack.

For these reasons the set enjoys great popularity with many customers.

The best frozen food cyclops in a stock pack: 3 kilograms of cyclops from Cool Fish

What we like:

  • good price-performance ratio
  • the 3 kilograms are divided into 30 packages
  • Cyclops is popular with many fish and therefore used up quickly
  • due to the large delivery you have to order less often
  • ordering in bulk results in less packaging waste

What we do not like:

  • due to the large quantity, a lot of space is needed in the freezer
  • A lot of cyclops, which is not a varied feed
  • for owners of only a small aquarium too much in terms of quantity

Editorial assessment

Cool Fish offers with its 3 kilogram pack the possibility to order a large amount of Cyclops at once and have it conveniently delivered to your home. the 3 kilograms are divided into 30 packages of 100 grams each.

The large order quantity is well suited as a stock purchase or if one owns several or particularly large aquariums.

Since Cyclops is a popular variety and is eaten by all kinds of fish, the blisters can also be applied more quickly than is the case with varieties that are specially adapted to one fish species.

Even if you have to give up some space in the freezer for storage, you are rewarded in return with a very good price-performance ratio. Also, it saves time if you only have to make a bulk order every now and then.

A further and convincing aspect is the saving of packaging waste. If 30 blisters were sent individually, they would not only have to be placed in a shipping carton, but would also have to be cooled with dry ice in each case. So with a supply pack, waste generation can be significantly reduced.

The best frozen food supplement for carnivorous fish: PETMAN Fish Beef Heart

What we like:

  • good supplement for carnivores such as discus fish
  • very protein-rich frozen food, promotes growth
  • for in between a good change to the usual menu
  • easy portioning possible due to blister packaging
  • Delivery free of shipping costs

What we do not like

  • if you feed too much beef heart, the water quality can suffer

Editorial assessment

PETMAN Fish’s beef heart frozen food comes in 15 packages of 100 grams each. The frozen food is composed of 98 percent beef heart and 2 percent ascophyllum nodosum (seaweed). The moisture content is 88.2 percent.

Frozen food is intended mainly for carnivores, i.e. carnivores. The most popular carnivorous species is the discus fish, but the food is also well suited for fish like the piranha. it should not be fed as the main ingredient, but can be used as a good supplement.

Since the frozen food diet of most fish consists mainly of crustaceans or mosquito larvae, beef hearts offer a good variety for in between.

The high protein content of beef hearts also promotes fish growth. If you need to feed up a fish or want to help your young fish grow, the beef heart frozen food is a good choice.

Although it is not recommended to feed too much beef heart, as this can worsen the water quality, the blister packaging already provides a portioning that can be considered well suited for an average aquarium.

The best fish frozen food package with free variety selection: The 2 kilogram package from SAHAWA

What we like:

  • free choice of different varieties
  • provides varied nutrition for fish
  • Desired varieties can be quickly and easily communicated via e-mail
  • varieties can be adapted to the different fish species in the aquarium

What we don’t like:

  • desired varieties must be specified via e-mail
  • some SAHAWA varieties have to be requested first

Editorial assessment

SAHAWA offers with the 2 kilogram selection package the possibility to compose several different varieties and to have to make only one order for it. You can choose between (red, black or white) mosquito larvae, krill, tubifex and daphnia.

A total of 20 blisters per 100 grams can be selected. A great advantage of this is that all 20 blisters can be different. All desired varieties can be named via an e-mail after ordering.

In this way all aquarium inhabitants can be served with one order. The assortment is so broad that the right frozen food can be selected for every type of fish. The supply is also very helpful in providing the fish with a balanced diet.

The package is therefore a recommendation for anyone who can spare some space in his freezer and wants to provide a healthy and varied diet for his fish in return.

The best frozen food Artemia: SAHAWA Artemia

What we like:

  • whole artemia are used
  • well suited as food for young fish
  • good portioning due to cube shape
  • easily digestible for fish
  • optimal cooling by dry ice during shipping

What we don’t like:

  • from time to time, unfortunately, pieces of Artemia appear instead of whole Artemia

Editorial assessment

Artemia is a well-known frozen food variety. From SAHAWA it is shipped in 10 blisters of 100 grams each. they are especially good for raising fry. Basically, however, pretty much all fish species are happy about this variety. One reason for this is that Artemia is particularly easy to digest.

However, there is often the problem that some brands only use Artemia pieces and remains. However, SAHAWA uses mostly whole animals. Fish actually notice the difference here, because with whole small animals the prey instinct is aroused far more strongly.

SAHAWA also offers a professional shipping in a styrofoam box with free cold pack. This ensures that the Artemia are kept cool throughout and arrive at home still frozen.

The excellent shipping and the practical frozen food quantity are aspects that are most convincing among customers.

the best discus freeze-dried food to intensify the red coloration: MIELING’S DISCUS QUICK Red intensive

What we like:

  • exactly adapted to the needs of discus fishes
  • due to the color intensification the discus fish shine even more beautifully
  • vitamins and plant substances cover the plant substance requirement
  • Flat pack allows free portioning
  • transparent information regarding ingredients and additives

What we don’t like:

  • relatively expensive
  • very large quantity, therefore possible space problems
  • is more worthwhile if you have already been able to test the food with your fish to ensure that it is accepted

Editorial assessment

Mieling’s Discus Quick Red intensive frozen food is a specially formulated discus food. It is provided in 20 200 gram packs. In this case the packaging is not a blister pack, but a flat pack. Thus the food is not pre-portioned, but can be adapted individually by each owner.

The frozen food is composed of beef heart, spinach, astaxanthin, 0.8 percent calcium and 0.25 percent magnesium. The ingredients are 1.6 percent crude fat, 1.6 percent crude fiber, 2.0 percent crude ash and 16.0 percent crude protein. The moisture content is 78,7 percent. Various vitamins and helpful acids are also found in the product.

The exact ingredient and nutrient information leaves no questions unanswered and seems very authentic and trustworthy. The years of experience of MIELING have contributed to the production of a frozen food, which is exactly adapted to the needs of discus fish.

The color intensification is a nice plus point. In addition, it is positive to emphasize that there is not only a food to enhance the red coloration of the discus fish, but also for blue-colored fish a special mixture was compiled, so that from each discus fish the most beautiful can be brought out.

Discus fish are very popular mainly because of their bright colors. so that the color of the cichlids comes out even better, there are fish freezer foods specially adapted to discus fish.

Buying guide for frozen fish food

In our buying guide, we have clearly compiled all the important aspects that you should know before buying fish frozen food:

What is fish frozen food?

Fish frozen food is frozen fish food. Although the term "frozen food" is mainly used in aquaristics, it is also common among reptile owners, so it is always useful to speak of "frozen fish food" or to look for it in order to avoid confusion.

Small food animals, such as crustaceans or mosquito larvae, are sold deep-frozen and, depending on the type of packaging, already pre-portioned.

Frozen fish food has several advantages over other types of food and should therefore be included as a permanent part of your fish’s diet.

There are even fish species that do not accept dry food, but gratefully accept frozen food, as it is very similar to natural prey in appearance and smell.

What are the types of frozen fish food?

There are many different types of frozen fish food. We have clearly summarized this for you in the following table:

  • Also known as water fleas
  • belong to the small crustaceans and appear mainly in fresh waters
  • also known as primeval crabs
  • one genus, the brine shrimp, is the most commonly fed
  • white (tufted mosquito), black (mosquito) and red mosquito larvae (twitching mosquito) are popular frozen foods
  • quite inexpensive
  • can also be called hopping crustaceans
  • belong to the copepods
  • have their name from the fact that they have only one eye, like cyclops
  • filter their food out of the water
  • feed among other things on plankton or krill
  • belong to the small crustaceans
  • Krill are luminous shrimp
  • Mysis are floating shrimps
  • also known as mud tube worms or brook tube worms
  • belong to the annelids
  • live in mud or also in very polluted waters

For which fish frozen food is suitable

Not every frozen food is suitable for every species of fish. Small fish in particular can often have a hard time with shellfish, such as some shrimp species. Also the natural habitats can influence the suitability of the food.

Therefore you should take these factors into account when choosing the appropriate frozen food. Fortunately, you can usually find a description or symbols on each frozen food packaging for which species the respective variety is suitable.

What are the most important criteria for buying fish frozen food?

When buying suitable fish frozen food, there are a few important criteria to consider. We will show you which ones here:

Floating and sinking properties

Fish live in different water layers. There are the following divisions: upper, middle and lower pelvic area.

Therefore, when choosing frozen food, you should make sure to give your fish appropriate products:

  • Animals of the lower tank area should get fast sinking food.
  • If the food sinks more slowly, it is suitable for fish that prefer the middle layer of water.
  • Top swimming species like fighting fish should best be fed with floating food.


For your fish to do well, it is important to provide them with all the nutrients they need.

Compared to live products, frozen food is hardly deducted in terms of nutrition and storage is much easier. In relation to the known dry food fish frozen food also has much better nutrients.

To ensure the health of your fish, a varied diet is just as important as for humans. Therefore you should in any case use the whole range of frozen food varieties, because each variety provides different nutritional values.


A distinction is made between three types of packaging:

  • Portions are divided and can be portioned like a bar of chocolate
  • So you can easily break off a piece as a portion
  • exercise very often
  • A serving is easy to squeeze out of the package as a cube
  • kept quite simple
  • Food is frozen in a plastic bag: is therefore not pre-portioned
  • Feed amount is individually adjustable to your aquarium


The quality is probably the most important purchase criterion. When buying from your local pet shop, we recommend that you check whether you can detect a sweet smell from the frozen food. If this is the case, you should refrain from a purchase.

Optically, a smooth and uniform surface is a prerequisite for good quality. Another quality feature can be derived from whether whole animals can be found in the frozen food. Unfortunately, there are also vendors that only use shredded remainders.

If you notice dehydration or crystallization on the food, you should stay away from the product.

Important accessories for the fish frozen food

With frozen fish food, accessories are not absolutely necessary. However, especially the thawing and cleaning of the food is much easier if you can fall back on one or the other tool for this.

Here is a small selection of possible accessories, which are very popular with most fish owners:

  • Can be attached to the wall of the aquarium by suction cupg
  • defrosted food can be put into the feeding ring
  • Acts as a collection point for the fish frozen food
  • especially good for thawing and rinsing the frozen food
  • especially good for thawing and rinsing the frozen food

Where to buy fish frozen food?

You can buy fish freezer food locally at a local store, as well as online.

You can get an exact picture of the product on the spot and get additional professional advice from the staff. The cold chain is also safer in the case of frozen fish food. However you do not have such a large selection in the specialized trade, whereby also the prices can turn out higher.

A purchase on an online platform often offers you a very large selection of products, some of which are well discounted. In addition, you can easily base your purchase decision on the reviews of previous buyers. As a disadvantage, however, there are delivery time and costs, and you also can not get an accurate picture of the food.

How much does frozen fish food cost??

For 100 grams of frozen fish food the prices range from a little more than 1 to 4 Euro.

The price depends mainly on which animals it is about. Cyclops are the cheapest with a price starting from 1,20 Euro, closely followed by Artemia and red mosquito larvae, which can be bought from 1,40 Euro.

At an average of 3.50 euros per 100 grams, lobster eggs belong to the most price-intensive range of frozen foods.

What are the alternatives to frozen fish food??

Here we show you some alternatives to fish frozen food. It is important to note that fish, just like humans, enjoy a balanced diet. In the following list you can see which food sources are most similar to frozen food and which food should rather be considered as a supplement.

Dry food

Dry food should be known to all aquarium owners. There are different types, but flake food and granules are the most popular ones.

An advantage is the uncomplicated storage and the simple preparation. However, it bears no resemblance to the natural food source of fish and is therefore even rejected by some fish.

Live food

In the case of live food it is so to speak the same content as in the case of frozen food. Only this is still alive and therefore not deep-frozen.

One advantage is the freshness of the feed. At the same time, however, storage is much more difficult and the food does not have a long shelf life, but must be used up quickly. There are also some owners who are disgusted by live food and therefore exclude it as a food source.

Natural food

As a supplement you can also feed with natural food from time to time. This could be autumn leaves or even some vegetables. However, care should be taken to add only small amounts of natural food, as this can, among other things, also change the nitrate content of the water.

What brands produce quality frozen fish food?

The following brands are known for high quality and great customer satisfaction:


SAHAWA owns a very wide range of products. Besides fish food you can also find high quality food for reptiles, rodents and birds here.

Cool Fish

Cool Fish offers a particularly good price-performance ratio. They belong to the cheaper brands, but still do not renounce to high quality.


Amtra is one of the most popular frozen food brands. The company has over 25 years of experience in the field of fish food and works closely with ornamental fish breeders worldwide.


PETMAN offers frozen food for dogs, cats, reptiles and fish. The range of frozen fish food includes over 30 varieties, so there is something for every fish.


You can find MIELING frozen food online as well as in your local pet shop. The company mainly advertises an increase in the color intensity of fish.

SV 2000

SV 2000 is a brand specialized especially in the production of frozen food for discus fish. You will also find different food mixtures, which are exactly designed for the needs of discus fish.

Fish freezer food test overview: Which fish freezer foods are the best??

A large number of consumer magazines regularly test products in terms of quality and advertising promises. Your results can help potential customers make the right buying decision by drawing attention to inferior goods in advance.

In the following table we have compiled the test results of the most renowned magazines:

TestmagazineFrozen fish food – test available?Publication yearFree accessLearn more
Stiftung Warentest No test available yet
Eco Test No test available yet No test available yet No test available yet

Unfortunately there are no tests for frozen fish food available yet. Should this change in the future, we will of course update this article for you.

FAQ – Frequently asked questions about frozen fish food

Here we present you the most frequently asked questions with the corresponding answers about fish frozen food:

How to feed fish frozen food for fish?

Here there are divided opinions. Some give the frozen food still frozen into the aquarium, others however speak out strongly against it and hold a previous thawing for indispensable.

On the one hand, there are large amounts of nitrate in the thawing water and on the other hand, it may even contain toxins. Neither should end up in the water of your aquarium, so you should always rinse the frozen food thoroughly beforehand.

Over time, a frozen piece of food can dissolve into small chunks in the water, which your fish can choke on. By the way, frozen food is not very good for the digestive tract either.

In addition, the defrosted amount can be distributed better. This is especially useful if you have several aquariums and one cube or tablet is too much for a smaller aquarium.

Finally, there is the advantage that the thawed small animals are understandably closer to the natural prey than a piece of ice could be. In this way the hunting instinct of your fish will be better awakened, because they have to hurry more when the food is defrosted, if everyone wants to get something.

In the following video you get an insight how to feed fish frozen food correctly:

Which fish frozen food is suitable for which fish?

Often you can buy directly a frozen food mix that has been specially formulated for a particular species of ornamental fish. Especially for discus fish the offer is very large here.

If you prefer to buy the varieties individually instead of as a mix, this is also possible without any problems. On the packaging you will usually find a direct indication for which fish species the product is suitable.

Here is a brief overview of the most popular varieties and for which fish species they are suitable:

  • young fish of all species
  • especially popular with omnivores and predatory fish (such as tetras, small barbs and shrimps)
  • suitable for almost all aquarium inhabitants
  • especially for medium sized fish a good choice
  • compatible with many species
  • especially suitable for angelfish, discus fish, rainbow fish and cichlids
  • suitable for almost all ornamental fish
  • especially cold water fish are happy about it
  • suitable for smaller ornamental fish and larger species depending on size
  • Shrimps are especially popular with cichlids
  • very popular with all underwater inhabitants

How often should you give fish frozen food?

How often you should feed your fish with frozen food depends strongly on the type and age of your aquarium inhabitants.

For example, if you have carnivorous species such as fighting fish or perch, you should feed live or frozen food daily, as vegetable food is often not well tolerated by this species.

However, if they are omnivores, such as guppies, discus or neon tetras, you do not have to serve your pets with frozen food every day. Many aquarium owners reach for the frozen food every 2 to 3 days. However, there is nothing to be said against daily feeding with frozen food.

Catfish feed mainly vegetable. Occasionally, however, they actually eat meaty food as well. Normally the frosted food remains on the bottom are sufficient for them, if the other fish have not eaten them.

How many fish can be fed with frozen fish food?

Depending on the number of fish the recommended amount of frozen food varies. Basically, many aquarium owners overfeed rather than underfeed their animals. This is mostly due to the fact that fish do not have a feeling of satiety and just continue to eat, whereupon the owner also continues to feed them.

Therefore one should not exaggerate with the quantity of frozen food. In an average-sized aquarium, one cube or one tablet is often enough. If a larger number of fish is involved, two cubes or tablets can also be used. However, it is not advisable to eat an even larger quantity, because otherwise it is very likely that food will be left over.

You don’t have to worry about feeding your fish too little with this amount. There are even owners who set a fasting day for their underwater inhabitants – on the grounds that fish in their natural environment also have days when they find nothing to eat.

What is the shelf life of frozen fish food?

Since freezing only slows down the decomposition process of frozen food, but does not stop it completely, frozen food cannot be kept indefinitely. It is even more practical that you can find the exact best-before date on the respective packaging.

Defrosted you should consume the food as soon as possible. It is best to take it within one hour. If this is not possible, it is recommended to store the frozen food in the refrigerator and use it up after 24 hours at the latest.

In this case you should definitely do a smelling test before feeding and have a close look at the food again. If you notice a strange smell, a change in color or a mushy consistency, disposing of it is the safer choice.

It is also possible to put the frozen portion in the refrigerator without defrosting it. This will slow down the thawing process and allow you to use the food at a later time without sacrificing quality.

Should you enrich fish frozen food with vitamins?

Enriching the food with vitamins is not a must. However, it can be useful if your frozen food is already older (i.e. shortly before the expiration date), as important nutrients are then often no longer present in the same quantity.

Also by rinsing the thawed food some vitamins are lost. Therefore it does no harm if you add a vitamin preparation afterwards.

Most often these preparations are sold in vials or tubes. You can find them in aquaristic shops or also online. For the exact dosage it is best to follow the description on the package or the package insert.

Like this post? Please share to your friends:
Leave a Reply

;-) :| :x :twisted: :smile: :shock: :sad: :roll: :razz: :oops: :o :mrgreen: :lol: :idea: :grin: :evil: :cry: :cool: :arrow: :???: :?: :!: