I have a tank that has a little glass lip just over an inch wide on all four sides. Because of this a HOB
filter doesn't fit correctly causing it to sit at an angle and rattle. The outflow of water also trickles over the lip and I'm afraid it will overflow out the tank. Anyways, I've tried to remove it with a razor blade without success. I'd prefer not to have to move the tank because it's in a corner on the bottom shelf of a stand with two tanks. I would have to empty both tanks, move the top one, pull the stand out and slide the tank out of the side of the stand. It will not come out the front of the stand, it's too long and the legs get in the way.
Anyone have any ideas how to remove this?