Foam Base 12×18 (use for 18″ wide Tanks) (PKT 10) Convenient size to fit most tanks SKU: AFB1218 Category: Aquarium Accessories Related products Aquafx 3ft Cabinet & Hood Black 36×15 Assembled (Pickup or local delivery only) Floating Guppy Tank 5way Breeding Trap Foam Insert Aquaclear 150 / 30