Setting up an aquarium requires more than just buying a tank and filling it with water. You must also determine tank size, water temperature, and, of course, the fish that will call the tank home. To ...

The Platinum Arowana is the world's most expensive fish, valued at over $400,000. Extreme rarity, unique genetics, and deep-sea collection drive the high prices. A rare Polka Dot Stingray with a ...