Yeah, I finally got in touch with Kevin and he was really nice. I still haven't decided what to do. I'm planning for only one oscar in a 120g. I thought it would be nice to hide the plumbing and heater behind the background so the oscar won't be able to attack and break things...but I want to make sure it will have enough room to swim easily. My tank is 24x18x60. Kevin was very helpful and recommended the rainforest (which I'm not crazy about) or the slimline (which I can't hide anything behind). I really like the rock backgrounds though. I'm torn.