This kit offers a great value for new fish owners, or for aquarists looking to get most of the tools needed for Betta keeping. This kit comes standard with 9 pieces, including a Nano Air Pump and Mini Sponge Filter. Please Note: fish and tank sold separately. Decorative Zeolite Crystals: This Aquarium Kit comes with 1 lb. of Zeolite Crystals. This decorative substrate also naturally absorbs ammonia in a fast and timely manner, along with waste, toxins, and odors. Items Included: Nano Air Pump Mini Sponge Filter 2.5 feet of Airline Tubing Check Valve Betta Leaf Cleaning Sponge 3” Fish Net Strip Thermometer 1 lb. of Decorative Zeolite Crystals Measurements: Air Pump = 2” (W) x 3.25” (D) x 1.5” (H) Mini Sponge Filter = 1.5” (Dia) x 3.75” (H) Airline Tubing = 2.5’ (L) Fish Net = 3” (W) x 2.5” (D) with a 10” (L) handle