I have used all 18 filter bags and replaced them every week as directed. I tested my water and there were no significant changes in nitrate levels. If there was a change, my testing didn't show it, so I'm assuming the change was minimal or non-existent. It might work for you, but in my freshwater tank it had little to no effect.
Live Freshwater Aquarium Plants: Dwarf Baby Tears, Hemianthus Callitrichoides, Java Moss In Vitro TC Cup By Greenpro
31 Review
Tetra AquaSafe tap water treatment agent, 5 l
11 Review
๐ Two Little Fishies Marine Snow ATLMSPD4, 16.9 oz
10 Review
๐ API Stress Coat Water Conditioner | Tap Water Safe, Repairs Fish's Protective Coat, Use for Water Changes, Adding Fish, and Injuries
9 Review
Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review
Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review