Hey guys, I needed some advice. I just broke down my 120, cleaned about 75% of the rock, took out the sand bed, and put it all back up. It has about 90% new water and all the rock is back in, the same bio balls were left in without cleaning them, and I went with bare bottom. The tank has been up and running for 3 days now, with turbo snails in it which are doing fine. When do you think it would be safe to add the fish? I am only putting in 3 that I have right now which are, maroon clown, purple tang and yellow tang. My tester is very difficult for me to read, but from what I can tell everything seems to be where it should be. I just dont know how well the rock made it through the cleaning, I am sure there will be some dead critters in there, this is why i didnt clean all of the rock, so that I would have some to seed the tank. Please give me your suggestions. Thanks.