C-wrasse.1/8" glass is very cheap.A glass cutter isn't too expensive either.I've seen it done and there's really not much to it.I'm sure Dakar could give you the run down on the procedure.If you'd rather not do it,glass shops don't charge that much to do it either.I paid $10 at the glass shop to have them cut 4 pieces of 1/4" glass for my horizontal overflow.