Replacement Filter Media for Matala® BioSteps External Gravity Filter Part:Replacement Green Media Directions for String Algae:

Directions for String Algae:

Dimensions: 6" x 6" x 15" (20360 & 20365)

Colors Shown Below:

Floating pellet ideal for all pond fish

The koi pond fish medication treatments were more damaging and stressful to the koi pond fish than the fluke parasites

Replacement Filter Media for Matala® BioSteps External Gravity Filter Part:Replacement Green Media Directions for String Algae:Replacement Filter media for Matala BioSteps External Gravity Filter. This will work for BioSteps 10 & II Each filter media pad is sold separately (this is not for a pair) and the BioSteps unit is sold separately. If you want a pair of filter media, you must order 2.