Learn how to care for koi fish ponds by avoiding common problems like algae, low oxygen, and poor water quality. Keep your koi pond clean and healthy all year.

Confused between green frogs and bullfrogs? Learn how to tell them apart by size, sound, and habitat—plus tips on managing them in your backyard pond.

Wondering about the average life of a goldfish? Learn how long goldfish live and discover natural ways to extend their lifespan with proper care and diet.

Wondering how deep a pond should be for fish? Learn ideal pond depths for koi, goldfish, and other species to thrive through all seasons—especially winter.