Alaska_Phil

I'm getting ready to order my overflow from www.Glass-holes.com for my 150. They make a 700 gph and a 1500 gph model, I'm planning to have about 700 to 800 gph return from my sump, so a single 700 would be marginal. So, do I get two 700's, one for each corner? Or a single 1500?

700
Pros: small box in each corner, less shading in one area.
Con: tank and boxes need to be perfectly level or most of the water will be flowing down only one anyway.

1500
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