Puffer Fish Food

Puffer Fish, Pufferfish or Blowfish, as they are known, cover some 150 different species, with around 30 being freshwater. They are all considered to be omniverous, eating mainly invertebrates and algae. The hard beak is used to crack open clams, mussels and shellfish.

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Puffer Fish Information

Pufferfish may look cute but they are all aggressive predators and generally very territorial! They vary in sizes from just an inch to over 24 inches! Take care before choosing your species for any tank.

They are intelligent and will learn to interact with you, especially at feeding time.

Puffer Fish Diet

In the wild Pufferfish will eat snails, crustaceans, shellfish and even other fish.

Teeth are important as they keep growing throughout their life. This is why you need to feed them hard substrate animals which will help to grind the teeth down.

Puffer Fish in the Home Aquarium

For a fish, pufferfish have a lot of character. In order to get food from their humans, they will display various behaviours to attract attention. They also have a few dietary preferences that are unique to them. Pufferfish can be fed on a wide variety of common household foods, notably seafood.


An unshelled shrimp is an excellent source of hard, crunchy meal for puffer fish. Other than that, crabs and shrimp contain an enzyme that blocks vitamin B1 from being absorbed. It's possible to avoid this problem by soaking thawed crab and shrimp in B1 vitamins, which are available in upscale pet stores and online.


Clams, cockles, and mussels are among the puffer's favourite foods. Puffers prefer the thinner shells of mussels, which they can easily crunch with their beaks. For larger puffers, feed these whole; for smaller ones, dice them finely. The thaminase found in crustaceans and mussels can be substituted by soaking the mussels in supplements. Another way to deal with this is by eating a varied diet.

Fresh and Frozen Fish

It's no secret that pufferfish are big fans of both fresh and frozen fish. You can use a cheese grater to slice off portions of frozen fish. Avoid oily fish, such as herring and tuna, which are high in fat. Caratinoids, found in abundance in salmon, keep aquarium fishes' colours vibrant. Because puffins also require crisp foods, they cannot subsist solely on fish.


Puffer fish can be fed squid from the supermarket. The cheese-grater approach works great on frozen squid, although you may need to slice it up into smaller pieces first. There are no crunch sections like in fish. Puffers can't subsist on squid all the time since their beaks need hard meals to wear down.

Home Aquarium Care for Puffer Fish

Pufferfish, such as spotted puffers (Tetraodon nigroviridis), are brightly coloured and full of character. They are venomous in the wild, but not in captivity, which is strange to say the least. Their poison is derived from the items they eat in the wild, but which they cannot obtain in a home aquarium. As a result, they necessitate an intermediate degree of aquarium knowledge but not as much as a saltwater reef tank requires.

Aquarium Setup

A tank of at least 30 gallons is required for spotted puffer fish. There should be an abundance of aquarium plants in the tank. To feel comfortable, spotted puffers require a large number of hiding spots. Puffers, on the other hand, tend to spend more time out in the open if they know where they may flee to if necessary. Also, the tank should contain a few spots where the fish can swim. For this fish, sand is preferable over gravel as a substrate.

Feeding Puffer Fish

Foods such as flake or pellets are off-limits to spotted puffer fish. Live and frozen foods are required. Many pet shops offer live and frozen worms and shrimp for puffer fish. The teeth of puffer fish never stop growing, thus they need hard, crunchy food like snails or mussels in their diets to grind down their teeth.

Water Conditions

“Freshwater puffers” refer to spotted puffer fish. Additionally, they can be found in freshwater in select areas of their habitats. However, brackish water — water that contains some salt but is not as salty as full-strength seawater — is the optimum environment for them to thrive in. They do best with water that has a specific gravity of 1.005. Additionally, the water's temperature should be in the range of 75 to 82 degrees Fahrenheit.


These puffers can live in the same aquarium as fish that require similar care. Fish of similar size can coexist in a tank with them. Prevent the puffer from being preyed upon by other fish. The same rule applies to puffer fish: avoid fish with long flowing fins. This puffer is very prone to fighting with other members of its species, thus it should only be housed in a single tank.

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