Fish tank filter material

Aquarium cube water filter is made of activated carbon, dense mesh hole structure.
It can absorb 99% of the harmful bacteria in the aquarium, as well as the odor.
It can effectively reduce the nitrate bacteria in the aquarium and adjust the pH.
Organic waste can also be absorbed into the aquarium.
Change or clean every 3 or 6 months, save your energy and time.
Great filtration material.