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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

    Local Time:
    9:05 PM
    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?


  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator

    Jan 23, 2005
    Likes Received:
    Local Time:
    3:05 AM
    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.

    Tom Barr
  3. Carissa

    Carissa Guru Class Expert

    Jun 8, 2007
    Likes Received:
    Local Time:
    3:05 AM
    Calcium chloride (pool hardness increaser) also works well, this is what I use.

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