I am setting up my 32 Biocube LED and am putting my rock in to cycle. My question is, can the rock be against the back of the tank, or do I need to move it out a few inches for circulation? There isn't a whole lot of room in the tank if I move it out from the back wall. The picture is with 25lbs of the 30lbs I'm putting in.
[/URL][/IMG]
[/URL][/IMG]