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swedish steel
04/06/2006, 12:46 AM
I have decided to drill my 300 and 130 glass tanks for weir overflow to the sump and for closed loops. I've studied the forum regarding drilling distance from the edge, but wonder about the number of holes one can put in the end of the tank without compromising the strength. I am planning one 2 inch, two 1 1/2 inch and four 1 inch holes in each end of the 300 and the 130 the same except only two 1 inch holes on each end instead of four. They will have sps on live rock in an island arrangement viewable from both sides. Your feedback is appreciated. Thanks.

Blown 346
04/06/2006, 02:05 AM
I think you will be fine as long as the holes arent real close to eachother you will still have strength in the tank.