fungus in fish

Fungus in fish

Fungal infections are among the most common fish diseases in tropical aquariums. In principle, fungal spores are found in all aquariums; in small amounts they should not cause any problems. But when conditions are not optimal, fungi can multiply quickly. And … Read more

Do Goldfish Have Eyelids

Do Goldfish Have Eyelids?

The exception to this are the sharks, which do have eyelids. Fish cannot close their eyes and therefore cannot blink. There are even fish species that have no eyes. Why don’t goldfish have eyelids and lacrimal glands? Fish have no eyelids … Read more