How to keep your aquarium clean is a question every fish lover asks at some point. A clean aquarium keeps fish healthy, water ...

Koi fish can be raised in an aquaponics system that includes an aquarium or pond, and a soil-free bed for plants. The excrement from the fish fertilizes the plants in this system. (Tiffany Woods) Skip ...

There’s always more fish in the sea. But for people living on land, it can be hard to see them. Many of the ocean’s deeper-dwelling fish are hidden from view for all but the most dedicated scuba ...