Review on Enhance Your Aquarium with Seachem Fluorite Onyx Sand Substrate: Unveiling the Incomparable Aquatic Bliss by David Chen

I've had to flush it about 20 times and the water in my tank is still cloudy as gray soup. For the first two flushes, it looked like there was cement in the bucket I used for flushing (that should have been my first clue). I can't imagine how much I have to pay for all the water I used to clean up this waste product. Once in the aquarium and shaking it, one of my brand new filters broke. I got another one and the same thing happened when the sand was moved across the floor. At this point, I honestly don't know what to do other than toss this stuff (which I think is actually trash) and spend another $100 on another substrate. And also drain the entire aquarium and spend MORE money to fill it with water. Mine isn't black at all in the tank either, more of a very light/whitish gray. from another seller. In my opinion, just expensive garbage! If I thought I was going anywhere I would ask Seachem for a refund for 2 broken (brand new) filters and all the water I wasted. Please do not buy this product if you know what is good for you. Someone should even complain to this company for selling this junk as aquarium substrate (if I knew where to do that I would).