Poly Filter Poly-Bio-Marine for Fish Aquarium - Works for Freshwater and Saltwater Fish Tanks - Filter Aquarium Media Pads - 3-Pack of 4in x 8in Pads

This is very easy to use and you can cut it to fit most filters. Highly recommend this product. Does a great job Cleaning the water.

Really good

This stuff has been a game changer in regards to the maintenance of our freshwater tank. My son has a 10 gallon freshwater tank and I was having to change the water every few weeks or change out the filtration substrates every few weeks but one of the staff at the local aquarium shop suggested I use this. I dont know how it works but it filters out harmful chemicals and organic material from your tank and keeps the tank clean for much longer. I place a small strip (1/2 inch thick) of it in the filtration system and change out weekly. It turns color to indicate the filtered contaminate. Its not very expensive and it will last at least a couple of months depending on the size of your tank and filtration needs. fHighly recommend.

Item description says it’s a 3 pack... when it arrived it was only one unit inside so I’m essence I paid 3 times as much thinking was for convience but ended up wasting my time.. thanks

Excellent product.

Great product

Nice product

Everyone should be using this

Excellent filter,,,, the best.

Great product, dont hesitate to use these. The expense is worth it to keep great water quality.