Cosmo Aquarium Oxygen Plus Bio-Filter is made of high quality sponge material. It has wide surface area and best for the growth of nitrifying bacteria. It is best for breeding and spawning of discus, dwarf cichlid, guppy and egg-laying toothcarp.
Sponge filter Features
* Use of hydrophilic high quality filter material as a result all air holes are interconnected. It is great for cultivating high-density nitrifying bacteria.
* Great design resulting in wide surface area for filtering
* The special air cells created numerous minute bubbles, increasing dissolved oxygen
* Quiet operation
* Great design prevents fries from being absorbed.
