Update: LFS checked my water. They found the Ph to be 8.7. Im guessing this is what did it? I had my diatom bloom, waited a couple days after and went out and bought a small clean-up crew. PH - 8.4 Salinity - 1.024 Nitrite - 0 ppm Nitrate - 5-10 ppm Ammonia - 0 ppm Temp 78 The water in the tank was snow valley drinking water. I looked it up and there was no copper. I bought 3 emerald crabs and 3 turbo snails. Floated them for 30 min then dripped them (2 drips a sec) for over an hour changing the water once it doubled. Dropped the crab into the tank. He ran to a hidding spot. Everything is fine. I helped the snails grab onto the glass. They grab on. Things are still fine. Then one by one the snails fell off. They arent moving. I put them on a rock. Nothing. I figured I would see if the emerald was ok....he isnt moving. What exaxtly is going on? Everything in my setup was new. I have 30 pounds of cured LR and 20 pounds of LS so copper leaching in shouldnt have been an issue. I am lost.