Calcium substitutes

Discussion in 'Water Parameters and Additives' started by Tony, 16 Mar 2009.

  1. Tony

    Tony

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    Hi guys. I'm looking for a calcium substitute that I can use to boost my calcium levels without affecting my p.H, preferably something I can easily obtain. I am finding calcium hydroxide to unstable with my p.H and want to dose manually.
     
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  3. lIghty

    lIghty

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    Calcium hydroxide is probably the most common, why do you say its affecting your pH, What is your Alk like?
     
  4. Tony

    Tony Thread Starter

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    My alkalinity is 7-8dkh. I am dosing kalk through my top up and the p.H swing vary depending on the amount of water flowing through the top up.
     
  5. lIghty

    lIghty

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    Not sure i'm with you, if you dosing quite a bit of Kalk, that should maintain your Ca.

    What sort of pH swing are you having?

    do you mean when you topup pumps its causing the pH to swing? if so, use less kalk in the RO water or put a valve on the pump so the water pumps over a longer time.
     
  6. Shaun

    Shaun Retired Moderator

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    I hope you find help, I have a sim thing, but have put it down to old test kits for now, no matter how much I dose the test kit say the same.
     
  7. Shaun

    Shaun Retired Moderator

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  8. Broder

    Broder Mudshark

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    I use calcium chloride flakes 75% pure. Cost me about R98 for 25kg. Have a high demand in my tank and no problems in about a year of use now.
     
  9. Tony

    Tony Thread Starter

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    Lighty. I have got my alkalinity dosing down to a tee and kalk interferes with that by adding some more alkalinity in the mix hence me wanting to manually dose calcium.
     
  10. Warr7207

    Warr7207

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    Tony if cost is not a problem then the TM BioCalcium is the perfect product.

    You can dump loads into the tank without any ill effects.

    [FONT=&quot]Key benefits:[/FONT]
    - Adds all 70 trace elements including strontium, molybdenum and iodine

    - Only natural substances are formed when dissolved

    - Add directly to your tank, no need to premix or drip.

    - Supplies calcium carbonate for corals and CO2 for the zooxanthellae.

    - Will not influence pH of aquarium if used as directed.

    - Measured amount of calcium in a truly ionically balanced formula

    Tropic Marin
     
  11. Shaun

    Shaun Retired Moderator

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    Strange CO2, it is know to lower your Ph.
     
  12. Warr7207

    Warr7207

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    Clever guys, these Germans :)
     
  13. Tony

    Tony Thread Starter

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    Warren. I found that dosing their quantities pushed my alkalinity through the roof. I was sitting with an alkalinity of fifteen at one stage. It's a brilliant product but I think it will work out too expensive in the long run once my demand goes mad.

    Mudshark, where did you buy the calcium chloride?
     
  14. Shaun

    Shaun Retired Moderator

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  15. Tony

    Tony Thread Starter

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    Sorry lighty. My p.H is usually 8.3 in the morning and 8.5 during the day which is fine. I hqave found it at 8.7 on a few occasions which I can only attribute to the kalk which is dosed irregularly depending on evaporation
     
  16. Broder

    Broder Mudshark

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    I think it was Protea Chemicals, but any chemical supplier should oblige. I got technical grade but you can usually get laboritory grade which is 99% pure but will cost more.
     
  17. Tony

    Tony Thread Starter

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    Where are they based?
     
  18. Broder

    Broder Mudshark

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    I'm in East London. Check your Yellow pages for a local chemical supplier.
     
  19. Warr7207

    Warr7207

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    Tony, if you have to buy a large amount I will go halfies ;)
     
  20. Tony

    Tony Thread Starter

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    I've found a chemical company in Roodepoort and I'm waiting on prices for Ferric oxide, lanthanum chloride, calcium chloride and magnesium chloride. I will let you know when they mail me
     
  21. jacquesb

    jacquesb Retired Moderator

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