Hi there, I'm new on the forum. I've been in the hobby 40 years and never had this problem. I recently redid my 55 gallon tank. New gravel and artificial plants. For some reason, after the last few tank re-dos, my tank is suddenly getting very cloudy after 2-3 or 4 weeks. I know of the cycling, but I have never experienced this before. As far as cycling, my tanks have never gotten very cloudy at all after I started a new tank or changed out everything. I live in Vegas and use tap water. Hard and lots of calcium. I treat the water with aqua safe and run the tank a couple of days and then add my fish. As I've said, this is what I have always done and always had good results...but these last 6 months I've run into this issue. I have never been one to check ammonia and that sort of thing, I've never needed to, but I think I am going to get a test kit. I just can't understand why this suddenly started happening. I'm wondering if the tap water in Vegas has been changed someway....something additional being added? I'm really baffled. Have some 1.5" fish. Oscar, green terror, bass, blood red parrot, 2 Plecos. I don't over feed. Ive used 1 hanging filter and had clear water. Decided to do 2 filters just in case. I also have added a foam in tank filter to house the bacteria needed, besides in the hanging filters bio area. Anyway any help would be awesome! thanks!