Is there anyone that has had a Planet Aquarium tank drilled. I purchased a Planet Aquarium Crystaline Show Aquarium 48 X 20 X 21 second hand from a local guy and wanted it drilled. Was told it has a tempered back but not the bottom and trying to verify this. If anyone have any info or where I could get the info I'd appreciate the help. I really would like to use a sump on the system rather than a canister filter.