in tank build do you use tempered glass or just regular plate glass i am planning a 240 build and half inch glass just need to know what kind to buy got all the ply wood and 2x material i build houses
I am no expert on which one to use for best, but I have just built a similar sized plywood tank and used 1/2" tempered glass. I have not filled with water yet, but I will let you know after I do.
It depends. If you don't plan to drill it, it could be tempered. Otherwise you'd have to drill it before tempering. Tempering does increase strength dramatically, but 1/2" glass is plenty strong enough for a 240g. In fact, I'm pretty sure that's what's used in an All-Glass tank; only the bottom is tempered.