I'm looking for advice. Does anyone have any experience with drilling 10 gallon tanks to fit a bulkhead. Im trying to figure out how to add a 10 gallon refugium for cheato. I'd like to add a 1 inch bulk head gravity drain into the sump. I would feed the 10 gallon with a small pump connected to a float valve for a ato. Then drill a hole for a 1 inch bulkhead to drain into the sump. Im concerned that the thin glass would Crack on me eventually and cause a flood. Should I find a acrylic 10 gallon.? They are expensive and hard to find. Any help would be appreciated on this project