Help Please! I apologize for the length of this! It's been quite a number of years since I've had a tank but I am happy to say I have one again! But I have never experienced this problem before. I recently moved and my husband says the water here is much higher in chlorine than where we moved from if that makes a difference. I do use water conditioned during changes and when adding water. I have a 30 gallon tank that has been set up about 4 months - since early April. Double whisper filter. I set the tank up for about 2 weeks before adding 1 medium Oranda, 1 medium Lionhead and a small Pearlscale goldfish. They were all hanging out fine and the water was perfectly clear and all levels were fine. Guess I should have quit while I was ahead. I bought these fish from a big pet store 2 hours from my house since I recently moved and didn't now of any local store any closer. A few weeks later, I found a tiny local pet store and added 2 more little goldfish (not sure what they are called but they look like feeder fish and I felt bad for them) and 2 mini aquatic albino frogs. A day or two later - I noticed my initial 2 medium fish had the beginning of anchor worms. I thought maybe the stress of the long ride maybe? Anyway, I panic'd and did all sorts of things that the local store told me to do. Maracy2, PraziPro, water changes, quarantine tanks, etc. Between all the stuff this woman gave me, my $7.99 fish cost me over $200. Whatever I did, they all survived and now they look great. Then an acquaintance who knew about my tank showed up at my door one day and brought me a medium size fantail goldfish (I still have no idea why but she did say she wanted visitation rights.....very strange! She does not have a fish tank by the way so I couldn't give it back to her.) Which irritated me because I wasn't sure if that would be too many fish in the tank and then I had to quarantine and then when I did put it in my tank - it was aggressive for a few days. In any case, all the fish and frogs get along fine now and to this day they are all alive. They are, however, starting to go to the top more often for air. This is just starting today as I type this. My water is my big problem! I admit I made mistakes. My tank started growing brown sludge on the filter (no where else) so I kept cleaning the filter cartridges..........with hot water........ Then I disconnected the filter so I could do a big water change at the same time I changed all my gravel from light color to black (because I couldn't see the albino babies).......... Ok, so maybe I also washed the plastic plants and the bridge thinking maybe it was leaching something into the water......... When I did that, the motor stopped turning and my husband said it was because of all the sludge and so I thoroughly cleaned the whole filter with hot water(this was before I read about the "good" bacteria") - it worked as the motor started up again.......... So I know all you experienced fish people are rolling your eyes now and know what happened. I have swirling clouds of white. This is about 3 weeks now. I have read everything about the "bloom" and have thus far tried everything and nothing. I haven't touched the filters. I have only added water as it evaporates. I added some Start Zyme" yesterday. Not sure how long this is supposed to take. I see no difference. My levels are all within range. Nitrate = 0 Nitrite = 0 Chlorine = 0 Alkalinity = 120 pH = 7.4 Ammonia = 0 I have very hard water. Oh - and I also have a light on one side of the tank currently as I read that maybe a little heat will help the bacteria grow? I don't know if anyone can help me or give me any advice. I feel terrible for these fish - it must be like looking through filthy glasses. I couldn't stand it! Thank you all in advance!