Quote:
Originally Posted by lapin
Not a good idea. Better idea is to make a structure out of pvc, acrylic or fiberglass rods with rods or pipes going up thru the pieces. Space behind the rock will help with flow to prevent detritus build up.
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I agree with having space behind the rock. I’ve noticed a huge difference with detritus buildup since rebuilding the scape. I did use a 2” PVC as a spacer with one particular rock.