Mits

You have valves that can be closed to the 55g so you can move it and put the 90g in it's place huh? You definiteley have lots of rock.

Let us know if it splits.

I don't have valves, I just threw in a second return pump. The new 90 will have a much more open aquascape. I'm going to throw most of that rock somewhere else.

Cool, can't wait to see it! ;-)