So I have been thinking on upgrading and have a few options to choose from.I'm interested in a 125 gal tank,and may have found one at a good price.My question is how does one know if the tank can be drilled?I know about the tempered thing..I don't want to shatter the tank. I also found the overflow kits,(from Dr fosters+smith) mega overflow kit-but without those black plastic er..a..covers(?)Not even sure if these are the right kinda kits. Lastly,if there is anyone here that can "be a pal" and help me get this accomplished...I would name my next fish after them...lol Jk ;D all joking aside,I could accommodate them maybe in corals or equipment that I don't have a use for.Or,if they have a price they wanted to do this,that may work too....thanks and happy reefing