Originally Posted by lbacha
Ok so I don't feel so bad about my over engineered solution of cutting squares of glass and drilling holes in them so I could insert threaded nylon studs into them. I then siliconed the glass squares to the bottom of the tank which allowed me to screw the rocks down to the bottom of the tank with nylon nuts and washers.
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no, don't. that idea is genius by the way!! but, in all fairness, had i not decided to build that out of the tank, the foam probably would have held it to the glass on it's own. i had to basically rip it off the bottom glass to get it out so i could cover it.