or small external filter

Aquascape BioBalls™ for filtration provides a textured surface area (19 square inches per ball) for beneficial bacteria to colonize and grow

Made from high-quality poly-resin

The simple-to-use self-cleaning feature allows for the unit to be backwashed in less than five minutes without opening the canister and getting your hands dirty

and 32 packets quantities

WFV Poly Pipe Select Size:(29470) 1/2" x 100' or small external filterAquascape WFV Poly Pipe works great for creating a water source to top off your water garden or koi fish pond. Ideal for 1 4" or 1 2" water fill valve connections and irrigations. Technical Specifications Choose from two available options: 100 ft 1 4" in inside diameter poly pipe 100 ft 1 2" in inside diameter poly pipe