Title: Cheap and effective
Product 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.
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