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[Tangster]

Originally Posted by wigger

I'm wanting to replace the bottom pane of glass in my 55 gallon tank so I can drill a hole for overflow. I was debating between using lexan or replacing it with glass. Glass is expensive and hard to drill. I was told that they would drill the hole in the glass then fire it to temper the glass after the hole is drilled (expensive). Lexan is a poly-carbonite that is slightly cheaper, and its easier to drill. I can use a regular hole saw to cut through it. But I'm wondering about using Lexan on a glass aquarium. Will it bond? What do I use to bond it to the glass? Is there a better way than changing the glass? Or should I just use the PVC Overflow that is discussed in another thread?

Just drill the rear of the tank or buy a new one the cost of replacing that pane will be more then a new tank.. Is it marked tempered bottom ?