aquapapa 4x dual bio sponge filter for betta fry aquarium fish tank up to 30 gallon (ship from ca usa) (dual sponge filters 4-pack)

these 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. SKU:ADIB01N7V15LJ

aquapapa 4x dual bio sponge filter for betta fry aquarium fish tank up to 30 gallon (ship from ca usa) (dual sponge filters 4-pack) These 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. SKU: ADIB01N7V15LJ