Sponge filters provide both mechanical and bio filtration - traps floating debris without be sucked up your fish and provides the ideal location for bacterial colonization
Double 7-layer ribbed sponges, it quickly established a bio filter and provides extra oxygen, two sponges means more surface area for beneficial nitrifing bacteria to colonize and faster cycling, keep your fish tank crystal clear and clean
Easy to setup: using an air hose, connect one end to you air pump and the other end to this filter,and equipped with a check valve on air hose, to prevent water backflow and air pump damage due to power outage, provides filtration and aeration, great way to clean and oxygenate your tanks
Easy to clean: simply remove the 2 sponges from the filter to clean or replace it, rinse and squeeze the sponges in used tank water, do not rinse the sponge with tap water or hot water, clean the sponges about every 2 weeks, Note: replace the sponges every 5 to 6 months maximum
?Fits fish tank size: 20 to 75 litres?Comes with 2 suction cups to stick to glass, can be installed anywhere,it can also be used as a prefilter or secondary filter; perfect for shrimp tank, betta tank, breeding tank, turtle tank, fry tank, goldfish, discus, crayfish, baby fish or other fish.