I am absolutely amazed at how well this worked. Like...shook. I had a 10 year established tank with large gravel and an under gravel tray. I switched it to sand for my Parrot Cichlids (they prefer sand and the tank is healthier without the mucky build up under the tray). That was about a month ago. My water has been cloudy ever since. I wasn't sure if it was fine sand particles, my tank recycling, a bacteria bloom. Water clarifier did nothing. Water changes helped mildly but only for a day or two. I added this filter media to my canister filter today and 6 hours later my tank is clear. I'm still going to add Dr. Tim's Refresh tonight, but my tank already looks so much better. I added 3 more boxes to my next auto ship so I can put it in my other tank's filter as well.
Unfortunately I never got the actual item. The box was correct but the item inside was not what it was suppose to be.
Awsome and very affordable. I got my order in just a couple days.