Foam Base 12×18 (use for 18″ wide Tanks) (PKT 10) Convenient size to fit most tanks SKU: AFB1218 Category: Aquarium Accessories Related products Foam Insert Aquaclear 150 / 30 Ammorid Insert Aquaclear Mini / 20 (SOLD OUT) Aquafx 2ft Cabinet & Hood Black 24×12 Assembled (Pickup or local delivery only) Aquafx Double Fish Breeding Net