Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Cheap and effective
Review: What can I say, the fit perfectly in my Cascade 1000 pump. They last about 2 months, which would vary based on bio-load. I bought a second sponge for the bottom tray. 2 tray of SeaChem Matrix in the middle trays. Seachem Purigen and one biofloss in the top tray. Tank is crystal clear, almost like the fishing are floating in air.
