I have a new 125 g tank that I suspect has some copper in the water. I have added some Turbo snails which have quickly died. I also have some zoos and mushrooms that aren't doing very well. My water tests out 0 ammo, 0 Nitrite, 0 Nitrate, 0 Phosphates, SG 1.022, Temp is 80. After reading all I could find it seems that I may have a copper problem in that I didn't fill my tank with RO water. I have since been doing all my weekly water changes with RO. I have had the tank running for about 2 mos. Does anyone know how I can get the copper out of my system, or do I need to just do as massive water change?