custom made fish tank uk

I want to build a custom indoor pond for preds, with glass viewing panels, measurements aren't final, but I've been told you can go as far wide and back as you want let's say with 2-foot depth & you'll be fine with 12-15mm glass, but I want to go taller. I've been told 3-foot height maybe 18mm...

Hello all! I'm doing my first DIY tank - after quotes for over £2500 to get a tank and cabinet made to order and seeing the state of some of the ones going secondhand, I'm going to do a DIY cabinet build, but I don't feel comfortable making the tank as it's going right next to my TV, PC and all...