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  1. N

    low KH

    And it turns out that my b/f (who kindly took the strain while my back was out) filled up with pure RO! Am slightly concerned as I usually remineralise with Nottingham tap, but what's done is done and I'm not ungrateful! I take it a few pure tap changes will put back whatever was missing??
  2. N

    low KH

    No new wood, but I did do my back in a while back so water changes have been minimal for a while. The last few weeks have been back to normal - I do about 20%. I guess it will return to normal after a couple more. Thanks for putting my mind at rest!
  3. N

    low KH

    Thanks Ed. Was quite worried so that's really reassuring. The tank has got cories, botia, a plec, some rainbows, a load of White Cloud Mountain Minnows and a few assorted refugees - none specifically liking hard water as far as I know?! But then as you say, with our water, it's not something...
  4. N

    low KH

    It's been a long long time since I took out my dusty test kits, but for one reason and another, I tested KH and GH today. While the GH is around 8-9, the KH is 0! :shock: pH is 6.5. Before I started using CO2 (currently just the Nutrafin kits) both KH and GH were quite high, and pH hovered...
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