Bests & Worsts Reviews from Amazon

This sand is of an exceptional quality, it comes dry and perfectly clean. Particle size is extremely uniform and ranges between .45 and .55mm. I would highly recommend it for use in an aquarium. I had bought 150lbs of it for my new 3000gph intex filter only to discover it's too fine and passes through the slots in the laterals, ending up in the pool. I thought it was a filter problem at first, but then found all parts were in perfect condition. Intex specifies #20 sand between .45 and .85, this sand satisfies the criteria perfectly, but still passes through. I guess intex is to blame. After doing some research on the web I found out that #20 hth brand would work with my filter so I ordered it (it was almost half the price). The grain size of the hth is enormous and a lot less uniform, but worked great in my filter. hope this helps other people who are shopping for sand for their intex filter.