SOBO SB-533 Sponge Filter – Aquarium Bio Sponge Filter with Adjustable Airflow, Air Stone & Filter Media for Fish Tanks, Shrimp Tanks, Fry Tanks & Planted Aquariums

BIOLOGICAL SPONGE FILTRATION – Supports beneficial bacteria growth to help break down harmful ammonia and nitrites in the aquarium. GENTLE WATER FLOW – Ideal for shrimp, fry, and sensitive fish that need softer filtration and less disturbance. ADJUSTABLE AIRFLOW – Easy airflow adjustment helps control oxygenation and water movement in the tank. MULTI-FUNCTION FILTER DESIGN – Provides filtration, aeration, and debris capture in one compact aquarium filter unit. AIR STONE & FILTER MEDIA INCLUDED – Comes complete with air stone, bio-sponge, and filter media for added convenience. EASY TO INSTALL & CLEAN – Simple setup and low-maintenance design make routine aquarium care easier. WORKS WITH STANDARD AIR PUMPS – Designed to connect to a standard aquarium air pump not included. IDEAL FOR FRESHWATER & PLANTED TANKS – Great for small to medium aquariums needing reliable, low-stress filtration.