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ok so at work I have over 20 tanks to look after...I have only been studying up on theses tanks since the past 3 months, hence the inspiration and challenge for my own tank at home. So I have done tests on 7 tanks this morn all of which have cloudy water....They have been established now for approx 8 months and all have ClearFlow undergravel filters...Each tank is approx 20 gallons and all contain a variety of fish...
Readings as follows on all tanks ammonia 8.0, nitrates 20, nitrites 0ppm, ph 6.0, h/range 7.4...
Keep in mind we have done 3 water changes of 25% in the last week, have tried adding ammo lock, I understand you may get signs of ammonia still reading in the tests, we have used stress zyme instead of water conditioner containing aloe vera, and we live right on the coast in perth w.a so our water has high ph of 7.6 (alkaline) and chlorine through the roof in some areas...most of the fish seem to be ok, only a few deaths in tetra glow light tank, the ahlI electric blues looked like they had itch last week but now are swimming around lovely and look better than last week...any help would be fab guys thanks