Bests & Worsts Reviews from Amazon

These rocks were added to a established tank. I have had this tank set up for almost a year. I rinsed the rocks over 4 times and conditioned the water the last rinse. All the other items were added last week. After adding rocks today, the fish were dead when I checked on them 4 hours later. DO NOT PURCHASE!!!!!. The picture show's most of them stuck to the inlet filter after they died. I am so disappointed. I have been in this hobby for more than 25 years and have never seen a product do this. I would give a 0 if I could. UPDATE: I was waiting for a response to work this out before I posted this. A couple of days after this devastation, I went to put the bucket away and found this weird reflective residue in the bottom of the bucket. Now, I swished and rinsed this rock at least four times before I added to my bare bottom, completely established tank. There is no doubt in my mind that my fish died due to this gravel. I feel that I should be refunded for the two bags and gravel and for the all the adult fish that I lost. I planned on breeding my Neon Tetra's this summer, but they're gone now due to this gravel.