My fish all had ich and were treated over the past five days. I did a water change yesterday and put in new carbon filters. I added some stress coat and today they all look horrible. My porcupine puffer is breathing heavy again and laying at the bottom. The yellow tang is laying on his side. My clowns are losing color and so are my damsels. What else can I do? Ammonia levels are fine. Nitrites are a little high. PLEASE HELP!