What do starfish eat in aquariums

Starfish are considered exotic eye-catchers in aquariums - but not everyone is suitable for every tank. If kept incorrectly, the animals can even become cannibals.

The starfish fascinates with bright colors, its shape looks like it was painted. This makes it an eye-catcher in the saltwater aquarium - but also a demanding roommate.

If you want to spruce up your aquarium with the colorful animal, you should above all think about how it will find enough to eat in the tank, recommends the Industry Association for Pet Supplies (IVH).

Many species of starfish only survive in well-matured, large reef aquariums, in which they can find a large number of flower animals and algae. Algae coverings with the small animals they contain are like a buffet for starfish. If they don't get enough of it, cannibalism can result, says the biologist Daniel Konn-Vetterlein.

Therefore, not too many starfish should be kept in an aquarium. Some species such as the pillow starfish can also grow up to 40 centimeters in size and then mainly use immobile roommates such as anemones and corals. Starfish not only eat other animals, they also quickly become prey for certain fish and shrimp themselves, says the expert.

Holders of goosefoot starfish - a species that reproduces asexually and reproduces strongly - poses a completely different problem. They can flood the reef aquarium in a very short time. (dpa)