Luckily, discus fish exist. They're just as colorful as any saltwater fish, and some of them grow as big as dinner plates.

Because discus fish are native to the Amazon area in South America, they prefer water that’s on the warmer side — even for tropical fish. In their native habitat, they swim in Amazon ...

Most fish abandon their young at hatching, but not discus fish. Researchers have discovered that discus fish parent like mammalian mothers. Not only do the parents feed their young from mucus ...