Why Is My Fish Hiding Under a Rock?

To protect themselves, fish will instinctively hide when they are uncertain, frightened, stressed or uncomfortable. Having a safe place to retreat provides comfort and security, and greatly improves a fish's chance of surviving in the wild.

Do fish hide when they are dying?

Aquarium fish do not exactly hide because they are dying, but they do hide when they are sick, which could quite easily lead to death, more so if you don't find them in time.

How do I stop my fish from hiding?

Adding plants to your aquarium can help stop your fish from hiding. Plants offer great security for your skittish fish. So, consider checking out my piece on the benefits of having live plants in your aquarium here.