POLYBIO Poly Filter PAD 4 X 8

It was one pad and that was it. I had to cut it up to make it last longer.

This is fantastic- and you can even see what it is removing from the water!

I have always love these filter pads, they are worth the cost!

Works as advertised

Exactly what I needed, works great. Thank you

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 cant 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.

works good.

Product is as expected.

I just started planting my tanks and realized the Activated Carbon in most filters was leaving a black film on and killing my plants. I tried so many other options, finally, I found these. They work great!

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 cant 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++++++++++