This tiny tank is its own complete ecosystem: it doesn't need a filter or frequent cleaning ...

A plant filtration system for fish tanks invented by Benjamin Graindorge and Duende Studio.

This week, the aquarium added 20 new blacktip reef sharks from Australia to help complete an ecosystem that replicates endangered Indo-Pacific reefs.

BALTIMORE (AP) – The National Aquarium in Baltimore has overhauled what once was a drab, leaky, concrete tank of mostly sting rays, adding 1,000 animals and 3,000 hand-sculpted coral replicas to ...

A clean tank supports a stable environment, prevents waste buildup, and helps keep your fish active, stress-free, and less prone to disease. But how often should you actually clean your tank?