ok lfs has a 1500g display tank with 2 aros just shy of 30 inches. they have started to fight and the guy that runs it was wondering if i wanted to buy one. first off, what would you figure one is worth? he told me 500 boxed up or 300 if i want to get wet and catch him. im thinking of offering him 250 is that a decent deal? i have an 8x4x2 tank with a 12" gar and 16"rtcxtsn. are the agressive? i know they are jumpers in the wild, do i need a heavy top? basically is there anything i really need to know about them as far as temperment or care goes and would this be a good deal?