A saltwater aquarium can be a dramatic addition to any room. Filled with exotic (and expensive) fish, it’s visually appealing and a great conversation piece. But it isn’t exactly easy to care for.

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 ...

There are many things to consider before you get a pet saltwater fish. Fish tank. Also called marine aquariums, saltwater fish tanks take more care than freshwater tanks because they are considered an ...