I am so frustrated. The tank was great and now its a cloudy mess and I have fungus spots on my fish again. The ammonia levels are so high and I cannot get them down. I am not overfeeding them and I am water changing and vacuuming and nothing is working. I am almost ready to flush the whole tank (but not quite). I am wondering if the water in my town is really bad and they are using chemicals to test it right now or adding new chemicals. There is a big chemical investigation going on here right now and our community doesn't look good. The environmentalists are here from all over the place. It was about a spill that happened 20 years ago and about companies dumping toxic stuff for years. Those companies are in trouble now. I noticed I was not the only one in the LFS complaining about my tank having sudden ammonia problems.