great link, Freddy! I can't say those are the prettiest fish around, but I guess their personalities make up for it 
By the way, electric fishes (including eels, knife, elephantnoses) are some of the, if not the, most intelligent fishes out there. Because of the control and sensory sensitivity it requires to not only produce but analyze electrical information, they have relatively large brains. I've heard they'll play with little balls of foil thrown into the tank, or anything else new and exciting! Very fun.
By the way, electric fishes (including eels, knife, elephantnoses) are some of the, if not the, most intelligent fishes out there. Because of the control and sensory sensitivity it requires to not only produce but analyze electrical information, they have relatively large brains. I've heard they'll play with little balls of foil thrown into the tank, or anything else new and exciting! Very fun.
