to bad there's no aquarium vids on these guys..guess ill have to make one..my guy I collected last year is now 14 inches hits the tank so hard when I feed him its scary..teeth are very very visible..will snap a pic..all we ever see are 6 inchers wild caught..also he is an active prowler...exhibiting much of the hyper figity and curious mannerisms and eye movements one sees in salt water species..he follows my fingers and really is a super aggressive beast: my guy is in fresh water..several friends have theirs in their salt water aquariums..also I like the fact they are a lot like blue fish young snappers...when you fish them you just troll fast and they hit...even with no bait on the hook