Electric eels can get to 8' long anybody who says a 125 is big enough for life is cruel because that is way to small im 6'4" and i wouldnt want to be kept in a 5' boxPeanut_Power said:600gal? Hmm......you contradict what everyone else has been saying. Most peeps tell me that they aren't very active and that they could live for life in a 125gal. Personally, i was rather confused how a 6' fish could live in a 125gal. for life...haha. 600gal is pushing my limit though, especially for just two fish. I can do a 300gal dedicated tank, but 600...oy.