has anyone had a hard time wit the rms mounting from ecotech just found out it can only fit on tank 1 3/8 thick my 150 cube measures 1 1/2 thick wit the moulding so for this reason it fell in my tank while trying to place it can I cut into the moulding 2 make it fit or do I need to buy a hanging kit which I don't want 2 do any advice would b well appreciated thnks