
This is a 75 from glass cages. It has been sitting on my garage floor waiting for me to cut a hole in it and make it a filter. It has been hot and cold in there and it hasn't really been moved much. I did slid it out of the way a few times but not far and its flat. Well today I see this on the back corner. Its not all the way through the glass...it's in the middle of the long pain of glass. Its still smooth on the outside and inside silicon and all. So I don't think it would leak...but would it hold???? As a sump it would have 6" of water unless the pump was off then it would have some more. Tank it would be a filter for is a 240 long....