you guys are probably sick of answering this question... i have a 125, i have 4 dats, I was interested in a jardini... how big do they grow, i've gotten conflicted information online and in books and from my lfs... is it ok to have one in a 125 gal. tank? I have plenty of open water up top and i only want 1. i need some consistant answers cuz im hearing that 125 is too small for one by itself and that i can hold one in a 125 with my four baby dats.... and that they get from 2 feet in length to 4 feet... too many different answers. the fish im interested in is about 6 inches long now.