Easy-to use biological filter for tropical aquarium fish
Aquarium filter sponge for efficient biological filtration
Great biological filter for breeding or spawning aquariums

Good durability, excellent filtering effect, use environmental protection sponge which is suitable for the growth of
nitrobacteria, dispose large joint which connects with diving machine, it is used together with an air pump and diving
machine.

With little stones inside, the air can easily dissolve in water, with a flexible tube, when enlongated the tube out of water, the bubbles will helöp to move the water, further more it can be long-term used and does not affect the result.

The filters allow you to cultivate nitrifying bacteria for superb biological filtration. Great for fry aquariums and brine shrimp hatcheries because they prevent young fry from being trapped in the filter media. Operates silently, creating numerous minute bubbles for increased oxygen flow. Each requires an air pump and airline tubing, sold separately.

Produced from high quality hydrophilic filter material. The design provides large surface area for optimum filtration.
Provides the ideal location for bacterial colonization. Operated by an air pump to create numerous minute bubbles to increase dissolved oxygen content. Replaceable filter sponge allow long lasting use. Does not trap fish fry. Suitable filter when breeding and spawning Discus, Dwarf cichlids, guppies, and killifish.