your 55 hex looks fantastic, I love my collesum (sp) but also i really adore the natural look, if you like the decor of my tank what i did is try and mix the two, I added alot of caves and natural enviorment for my cichlids, and in all honesty they spend just as much time in both of the enviorments. But if i were to do it all over again i think iI would do a more natural look but its hard because i love them both.