Cultivating a saltwater fish tank is a bit like making a souffle — impressive if you pull it off, but delicate and easy to screw up. Still, it's easy to see why this hobby remains popular. At its best ...

A saltwater aquarium is an exotic and striking addition to the home. But more than a striking piece of furniture, it’s a living habitat that is both enthralling and engaging thanks to the vibrant ...

To keep your fish healthy and happy throughout their life, you need to understand how and why to change your fish tank water. There are thousands of fish breeds, and each one requires different care ...

Which 10-gallon aquarium is best? 10-gallon aquariums are a great pick for anyone looking for a medium-sized community or coral tank. 10 gallons may seem like a lot, but it’s actually the perfect size ...

Anyone looking to start with aquaristics must decide whether to go for a freshwater or saltwater aquarium–and which inhabitants should move in. PETBOOK explains the differences between the various ...

Sea urchins have mixed reviews in the saltwater aquarium scene. Some people love them because they are fascinating to watch and make outstanding algae eaters. Others find them difficult to care for ...