Actually some HOB overflow boxes will do that. Mines done it before but theres ways to prevent it. Most have things to prevent it. I'd get it drilled unless tempered
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RE: How to build a Sump for a 30 Gallon Saltwater Tank
Actually some HOB overflow boxes will do that. Mines done it before but theres ways to prevent it. Most have things to prevent it. I'd get it drilled unless tempered
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