Powkoo Sponge Filters for Aquarium Fish Tank Quiet Air Driven Filter with Stone

Quiet Sponge filter: Air powered fish tank sponge filter, a cylinder air stone in to break up the large bubbles, and not noisy at all, causing no disturbance to your daily life, sponge filter for aquarium fish tank, provides physical filtration, biological filtration, oxygenation, aeration in one, suitable for freshwater and saltwater. Highly porous 60ppi sponge: Protect baby fish from being sucked into the filter system, horizontal cut-cylinder sponges, where provides lots of surface area for growth and breeding of beneficial tiny creatures, enhances bio filtration, good water flow, traps floating debris and fine particles, keep your fish tank crystal clear and clean, closer to the natural water quality. Easy to set up: Using an airline, connect one end to you air pump and the other end to this inlet tube, and equipped with a check valve on air line, to prevent water backflow and air pump damage due to power outage, provides both aeration and filtration in one solution, great way to clean and oxygenate your tanks. Easy to use and clean: Squeeze out the air in the sponge when you put it underwater, then it will suck into water and keep down at the bottom; simply take out the sponge, rinse and squeeze it in used aquarium water, recommend to clean the sponges weekly and regularly, recommend to replace the sponge every 5 to 6 months maximum. Multipurpose: works perfectly as a secondary filter or prefilter, easy to hide behind plants and decor, cylindrical sponge filter doesn't take up too much room, fit any corner, great for shrimp tank, breeding tank, betta tank, nano tank, turtle tank, fry tank, goldfish, axolotl, baby fish or other fish.