Small, colorful, and a lover of habitats with sandy substrates, Red-clawed Crabs are some of the best aquarium pets that aren’t fish.

Filled with live plants, substrates, and glimmering schools of fish, a perfectly curated aquarium is an awe-inspiring art form. But the best aquarium pets that aren’t fish prove that our finned ...

2. Red-Clawed Crabs Small, colorful, and a lover of habitats with sandy substrates, Red-clawed Crabs are some of the best aquarium pets that aren’t fish.

Small, colorful, and a lover of habitats with sandy substrates, Red-clawed Crabs are some of the best aquarium pets that aren’t fish.