- 100*100*5cm Amazon black bio-sponge filter1. size 100*100*5cm2. 5 pcs/bag3.good filtering4.black color Weight 9 kg Reviews There are no reviews yet. Write a review Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment. Δ