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Calcium supplement for Crytocoryne balansae and C. aponogetifolia?

Discussion in 'General Plant Topics' started by Russ, Jun 9, 2008.

  1. Russ

    Russ Guest

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    I've read several times that a calcium supplement is good for these crypts. What is a readily available source to add to tank water? How much?

    Thanks,

    Russ
     
  2. Tom Barr

    Tom Barr Founder
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    CaSO4 works well, not much, perhaps 5ppm or so.
    I do not think it's so much Ca as it is KH.

    The plants do very well in very soft waters in both natural native systems as well as aquariums.

    Regards,
    Tom Barr
     
  3. Carissa

    Carissa Guru Class Expert

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    Calcium chloride (pool hardness increaser) also works well, this is what I use.
     
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