I was in a rush to get my 3d background in and did not think of where I was going to put my filters and heaters, so I did not cut the background at all. The tank is currently full of water and has a heater and an Fx5 in it, but I still want to put an aquaclear 110 I have in the tank. Any Ideas, if possible, on how to cut the background so I can fit the aquaclear in there? Thanks.