well one thing i can say is that there is a bare minimum thickness for saftey and this is it, any thinner and there hould be no chance in hell. if it was my tank i would go overboard and use 3/4 and gu up another 4-6", I go overboard on everything that i build but its also me belife that a well supported tank made from the 1/4 will also hold, i also had resercations about this thickness esp. since i herd that turtles where going into it and i here that they have a habbit of comming up to the glass and ramming in quick bursts, but zach assured me that that is not usual behavior and his turtels are only about a inch, Like i said before i would fill it half way to 3/4 the way up and build a half terrarium and half aquarium that way they can clime up onto lad if they like, and maybe keep some slalamanders or a tree frog or something. but filled allthe way up why is it that you guys think that the tank will fail?, better jet where where you when he was asking this question 2 weeks ago? Its easy to critisize and bash someone after the fact but to help is just out of the question to some people isnt it?, lets try not being so negitive and make the poor guy scared for gowd sakes, He seems more then capable to put together a tank dont you think?
although I too would worry about the glass thickness.
I made the same mistake making my first tank lol, all you need to do is run a blade around the bottom though.
