i never liked the look of the "fruit stand" style aquascape where the rock is all in a pile and the coral sits on it... personally, i scape my rock with a 5/8" masonry bit and 1/2" cpvc pipe... you NEVER have to worry about the towers falling over like this... in my opinion, less is better when scaping LR... but i also like alot of swimming room for the fish... if your not scaping huge heavy rock, plastic rods liek sohal said, or wooden dowels work well too... people think wood rots, but actually, the dowels soak in the water and expand to hold the rock tight together....