yesterday I bought some coral (pulsating xema, zoa, and a small hammer) and a BTA. This was my first time adding coral and I read that bioadvanced (bayer) was stronger then normal coral dips, I used 6oz in 1 1/2 water solution and let them sit for 5mins (not the BTA) then I washed them in some tank water before adding them to the DT (this was at 12pm). In the morning everything was fine and I went to work but when I came back one of my clowns was dead (she had some worms and wasn't eating much) and my old and new anemone had white feet and one was falling off of its rock, the fish where breathing hard too. Then my fire shrimp curled into a ball and died so I took the anemones, coral, and fish out into a QT and It seemed they recovered. I noticed a ton of amphipods that I didnt even know I had climbing against the front glass. My first suspect was the bayer that somehow it got into the tank and killed my sick fish and the inverts but now im not too sure because when I looked at my front glass I seen that my brown flatworm infestation was still alive and moving about and so was my cleanup crew and one of the fish I was unable to catch so I have no idea whats wrong, im currently doing a 90-100% waterchange just to be safe but all my levels are at 0 except my ammonia thats at .5 please help me figure out whats wrong 
Sorry you're having such trouble with your tank. I think you've done the right thing so far by moving the fish to QT and doing a large water change. 
