All aquarium fish are edible. Every living thing in the world is edible. What are some of the people here talking about? Most fish found in tropical fish stores are eaten in their native habitat. Tilapia is a species of African Cichlid. Pagasius is an Asian Catfish known as I.D. Shark. Oscars, Discus, Severum, Pacu and hundreds of species of catfish are eaten in the Amazon. Piranha Head Soup is an aphrodesiac. Pleco's (Suckermouth Catfish) are thrown onto firepits whole, and cooked inside their body armour like a pressure cooker. Carp is delicious if prepared correctly. Koi (a kind of carp) are eaten in Japan where they are known as "Samari Fish" because they don't even flinch when their heads are lopped off. In Africa the Cichlids are eaten. Even the small ones are dried in the sun and either eaten whole or ground into powder for soups and pastes. The Elephant-nose fish and other Mormyrids are used in soups also. Kissing Gouramis and Silver (Bala) Sharks along with I.D. Sharks are farmed in Asia, in fact, the ones you see in pet stores are actually bought by the wholesalers from fish farms. And that's just the freshwater stuff!

One more thing. Don't eat live goldfish. They are farmed in Asia and riddled with parasites. Swallowing live goldfish (or any live freshwater fish from Asia for that matter) may be a fratboys idea of fun, but he won't be laughing a year from now when a six foot tapeworm starts tickling the back of his throat looking for deep-dish pizza morsels.