The tiger fish is a nice, ravenous little fish that can be found in the Congo River, in Africa. If you can't tell already, they are carnivores. They eat fish, small rodents, and probably people that fall into the river. They are pretty hard to find, considering the fact that they are fished and hunted a lot. They origianally were thought to be related to pirhannas, but they are completly different species. The reason for this is obvious. They both have big, sharp teeth, and they are both carniverous hunters. They use vibrations in the water to track their prey. A pack of young fish can get almost any sized animal. Imagine what a pack of adults can do.