about one year ago i had a all glass tank (including glass lid) the lid sat on the top of the tank(oh really?) on brackets in each corner it had about one inch of gap on each side tank looked really nice. i orrigionally had it for keeping my show quality crowntail female betta but when the filter crashed in my shrimp breeding tank i put my green shrimp, one bee shrimp i had and a couple aminos in and put the fighter in the other tank and the shrimp never climed out of that tank and that had cables coming out from filter and heater in it.