Sorry I've been gone for so long, it's been a very hectic last few months. Graduating with my 2 year degree, getting ready to move away from my home town, finals, papers, projects, ah! But to the point. My friend that started a 75g saltwater mixed some reef mostly fish a little bit after I did decided to upgrade, he found a 300 gallon home made glass aquarium and picked it up for 300$. He got it home and cleaned it up, tested it for leaks and nothing. After a day or 2 they filled it up over half way and it started to drip. So now he has to strip the entire bottom, which is made of something like wood, fiberglass and pond liner I think, I haven't inspected it yet my self. I might go over tonight and get some pictures, i only saw it for a few minutes today. This thing is HUGE 8ftx?x?. The main question is how would you guys go about stopping a leak on a home made glass aquarium? I know gooping lots of sealant on it wont work, that never does. I'm thinking strip the entire thing down and use a good caulk gun style aquarium silicone and set a SOLID bead along the entire thing? Does anyone else have any ideas? Please let me know, were going to work on it tonight possibly.