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Test Results for the Following: on 11/23/13 * Ammonia Level(Tank).25 * Nitrite Level(Tank)0 * Nitrate level(Tank) * Ammonia Level(Tap)0 * Nitrite Level(Tap)0 * Nitrate level(Tap)0 * Ph Level, Tank (If possible, KH, GH and chloramines) 7.4 * Ph Level, Tap (If possible, KH, GH and chloramines) pH: 6.1 /Well water, no additives, only an iron filter Other Required Info: * Brand of test-kit used and whether strips or drops? API Freshwater Master Test Kit-drops * Water temperature? 70.7F * Tank size (how many gals.) and how long has it been running? 75 gallons/ 2 years and started with water from a smaller tank that had been running for a year. * What is the name and "size of the filter"(s) current: Eheim professionel 3e(new filter), run concurrently w/a a Marineland 350 Magnum canister filter during transition, Eheim solo now for 1wk. * How often do you change the water and how much? vacuum the bottom 1xwkly with 10%water change./1xmonth take it down 20%. * How many days ago was the last water change and how much did you change? Yesterday afternoon after I saw my fish in distress and tested the tank. 15% change. * How many fish in the tank and their size? 3 goldfish 10 in. female comet, 6 in. male black moor, 6 in. male choc. oranda Note: Female has laid eggs that turn opaque several times. Males display breeding tubercles and engage in breeding behavior. Note: Have two air tubes hooked to a Fluval air pump and a UV filter in the tank. LED lighting changed from fluorescent. No cover on tank. Natural small pebble substrate at 1/2" depth. * What kind of water additives or conditioners? * What do you feed your fish and how often? 1 x daily: "API premium pellets for all goldfish varieties sinking pellets" and shelled peas 1 x weekly Any new fish added to the tank? no * Any medications added to the tank? no * List entire medication/treatment history for fish and tank. Please include salt, Prazi, PP, etc and the approximate time and duration of treatment. Have not medicated since July 2013. Forum advice was that meds were unnecessary at that time. One other anti-biotic med app in 2011. * Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus? body swelling only. scales flush to body. * Any unusual behavior like staying at the bottom, not eating, etc.? Yes. Our large female goldfish suddenly started top hanging and mouth gasping yesterday morning. She looks a bit bloated but her scales are flush to her sides. She will swim down to the bottom and around the tank for a bit but her swimming is irregular. Refusing food. The other two goldfish are both males and are behaving normally and eating normally. *Current: as of this afternoon her eyes are showing their whites. Yesterday 11/22/13 morning our female comet was found in distress, mouth gasping(first time ever), hanging at the surface for brief periods(first time ever), and having some trouble going down to the bottom. During the day her body seemed to swell a bit. This morning that size is unchanged. Scales still flush to side. I fed all the fish shelled peas that morning, but the comet was not interested in food(first time ever). I have not fed them today. I decided to do a levels check and got these readings on 11/22/13: Ammonia approx. .15, Nitrite .25, Nitrate .80 or more, pH level 7.0. We always have had sporadic problems with our tank, mostly ammonia issues with occasional algae blooms. Even so, we have had our three goldfish with the loss of a gold oranda 7 months ago, for three years now. I contacted this forum for the first time in July 2013 about" ill fish" that were not actually ill, and got good advice re: our acidic water causing constant stress to the fish. We added a small net bag of crushed coral to the Magnum filter per the advice gained here, and have maintained a constant pH of 7.4 since. We also purchased the API Master Test kit to monitor nitrite and nitrate levels. We had a Marineland 350 Magnum canister filter and decided to upgrade to an Eheim Pro 3. We wanted to get off a carbon filter and go to a biological filtration system that also had a higher water exchange rate. Plus, in monitoring nitrite levels(always 0 until yesterday) and nitrate levels, we saw that the nitrate levels were fluctuating, sometimes to toxic levels. We also made the decision to feed the goldfish less food and to add a small UV filter to control algae. We never had "green water"- but a year ago did have a build up on the sides and so, decided to try to cut down on scraping the sides. On 9/03/13 we added the Eheim Pro 3 filter and kept the Magnum 350 going for 45 days in conjunction with the Eheim to avoid a tank crash. We had excellent levels with no red markers. At just before the recommended filter change, the nitrate levels spiked to 80. We took the Magnum 350 offline when we changed the filter material out in the Eheim Pro 3. We brushed out and rinsed the tubes on the Eheim Pro 3. We looked into the Eheim Pro 3 and found a lot of green algae clumps. We dumped the water out of the Eheim Pro 3 and the first layer of biological filtration material fell out by accident. We scooped it out and rinsed it off in the sink, replaced the water and hooked the Eheim back up. We replaced the sponge as per the filter written instructions. The levels were fine all with numbers at 0 and nitrates at .20 for a week but we didn't check it the following week. Yesterday, during evaluation of the tank conditions, my husband found that the UV filter was filthy inside to the point where it clouded the water when he shook it. Mulm came out. We removed this litter by vacuuming and performing another 5% water change. The water was brought up to pH 7.2 with the addition of pH Up prior to adding to the tank. Aged for 1 hour. He removed the bag from the Eheim Pro 3 and reinserted it into the Magnum 350 and set that filter up again to run. His thought was to use the Magnum350 to restore the pH to the former level. Unfortunately the Magnum system is leaking so by last evening my husband removed it. With the buffering with pH Up for the new water and running the pump for 12 hrs, the pH went up to former level of 7.4 . For a brief period of months we had harmony but not now back to a tank cycling in and out. I don't know if my fish has a bacterial disease, is reacting to pH changes, the high nitrate level, or a combo of any of the above. I would appreciate any advice and I will follow it. We would like to help our distressed female comet. Get the nitrate issue under control and get the ammonia levels back down to zero. We would like to figure out why the eHeim Pro 3 didn't maintain the pH level when we inserted the bag of crushed coral into the top layer of bio-filter. his issue is vital as our well water is so acidic. Please view our tank photos at: http://gallery.njpineways.com/p485985643 I could not upload photos to your forum and followed your advice. This is a secure server and only open to those I share the link with. When this issue is resolved I will remove the link. Thank you in advance for your time and concern!