I notice on the 19th that I had an ammonia spike In my 55g tank(1 Black Moor, 2 Calico fan tails). On the 17/18 I had tested the water and it was fine. The spike seemed to appeared out of no where. My live ammonia detector was reading .10. I did a 50% water change and wanted to added amolock but I only had 2 capfulls left. My lfs recomended that I get Stress Coat and Wardley 3 in 1 Water Conditioner. So I did and treated the tanks. I had also put in aqua safe when I did the 50% water change. Then the live detector was reading .05. I used my liquid test kit(hagen) and it also detected ammonia 4.6. My Ph is 6.6. I found out that you are supposed to clean the bio bags once a week, I just put in new ones . I have a wisper 60 and yesterday got and setup a Penguin bio wheel 350. I have both running. I also got a diffrent ammonia test kit by Aquarium Pharmaceuticals. With it I am detecting 4.0 ppm(md/L). The in tank monitor reads .05. Will the stuff I put in my tank keep my fish alive? What else can I do?