Polybio Poly Filter Pad 4 X 8" 3/pack

I had used many different products to try and solve our nitrate problem, but the polyfilter was the only one to work to lower the level. My tank had also had low, but nagging, ammonia and nitrite readings that lowered to 0 when I put in the polyfilter. I used the product in my Fluval 350 canister filter, slipped down on the outside of the large foam inserts. I took out my used up filter and the nitrate level elevated again. I am glad to find that Amazon has a three pack, since my local fish store only carries packs of single filters and can't keep them in stock. The only downside of this product is that it states that it can be recharged, but when I tried recharging per directions but it was no longer effective in removing the nitrates, etc.

This is a must to clear the water of any medications used recentally or at least once a year to make sure to pickup anything the skimmer can't or whatever else you use. There is no substitute for this product anywhere. Truly a perfect filter that never takes out minerals or any needs life just phosphates and protiens, amonia etc. that you want to remove. IT lasts a while with color changing properties to aid in evaluating when it is full. Never leaches back into the water ever!

A++++++++++

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Keeping coral is no easy task, and if something leaches into the system it could take weeks to months for everything to recover. I have a very good filtration setup, but I also keep these Poly Filter pads, as insurance. They work great and change color depending on what it absorbs.

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This product is pricey, if compared to the standard activated carbon. However, not only does it outperform activated carbon as a chemical filter, but adds the benefits of physical and biological filtration. In power and canister filters, polyfilter elevates performance by orders of magnitude.

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This stuff works great to filter the bio waste in my reef tank. I use this with a tri-layer prefilter and get great results.

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