Calcium hydroxide

Discussion in 'Water Parameters and Additives' started by shane, 17 Apr 2009.

  1. shane

    shane

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    Hi,
    I have a FOWLR tank and noticed that some of my rocks are showing signs of corraline growth,should I start dosing calcium hydroxe or not.How do I go about increasing the corraline growth.
    Cheers
     
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  3. Tony

    Tony

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    Corraline algae will benefit from calcium and magnesium addition. Calcium of about 450ppm and magnesium of about 1300ppm. Trace element additions will also help
     
  4. Tony

    Tony

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    Sorruy, to answer your question, you can use kalk. Take a two litre bottle and add 2 teaspoons of kalk powder. Fill the bottle up with RO water and give it a good shake. Allow the kalk to settle and decant the clear solution. Drip this into your tank.

    Incidently, do you have an aragonite substrate or DSB?
     
  5. Shaun

    Shaun Retired Moderator

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    Most articles say, the more you expose kalk to air the less effective it is, so a good gentle stir would be better.
    Another mix is 1/2 tsp kalk with 15ml Vinegar to 1l ro water. This way you usually don't have any sludge at the bottom of the container.

    My2c.
     
  6. lIghty

    lIghty

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    I agree, If I'm not mistaken, using vinegar also allows more Ca to be releast from the kalk.
     
  7. Shaun

    Shaun Retired Moderator

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    Apparently so.
     
  8. mnd123

    mnd123

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    sorry to jump in - if I am dosing Reefbuilder and TM Bio Calcium will dripping kalk help in any way?
     
  9. Shaun

    Shaun Retired Moderator

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    If you are using the products properly probably no. What is your Ca in the tank.
     
  10. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Not forgetting Alk. Alk, 6.5-8.5 DKH. Alk of 9 DKH will increase the growth of coralline.
    Aswell as low phosphate levels.
     
  11. mnd123

    mnd123

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    Circa 400ppm
     
  12. sunburst

    sunburst

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    Absolutely. Calcium hydroxide has benefits other than those provided by calcium.

    With a heavily populated fish only system, all that extra dissolving and dissolved organic pollution exerts a more intense downward pressure on oxygen and pH levels. Hydroxide will put the brakes on.

    Hydroxide will also bond with phosphate removing it from solution

    The marine life we choose to keep.... is but a small percentage of what we actually keep. I often find myself more absorbed and facinated by the life that pops out the woodwork:crazy2: when given the right conditions. The carbonates that hydroxide provide is vital for much of this accidental life.

    If you have an auto top up, (if not why:nono:) mix a teaspoon or three with this water. Stirred BUT not shaken.:) Thanks Shaun
     
  13. Shaun

    Shaun Retired Moderator

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    No problem Mr Bond.:razz:
     
  14. Shaun

    Shaun Retired Moderator

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    You will have to cut back on dosing the other stuff if you want to use Calcium hydroxide.
     
  15. riyadhessa

    riyadhessa

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    Shaun why is this? so what are the implications
     
  16. Shaun

    Shaun Retired Moderator

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    What is the recommended Ca level?
     
  17. brentnorm

    brentnorm

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    380 - 420 meg/L (ppm)
     
  18. Shaun

    Shaun Retired Moderator

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    Thx brentnorm but I was hoping riyadhessa was going to answer.

    With a Ca level of 400 and the "recommended" range is 380-420 does one really need to add more Ca. That is why I said he may have to cut back on dosing the other stuff if he wanted to dose Calcium hydroxide.

    Don't try fix something that is not broken. ;)

    Anyway it is just My2c.
     
  19. mnd123

    mnd123

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    Agreed Shaun, and thanks for clarifying - I am trying to figure out a way to cut back on spending R400 for a large tub of TM Bio calcium and Magnesium

    So it seems I would need to run a CaRX with Arogonite and Dolomite and a Kalk drip to do that?
     
  20. Shaun

    Shaun Retired Moderator

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    No just Kalk and Magnesium Chloride, well it would depend on your demand.
     
  21. mnd123

    mnd123

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    Shane, sorry for hijacking your thread mate - I hate it when that happens :)
     
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