Ca, Mg and Alk Help

Discussion in 'Water Chemistry' started by kcbrad, Mar 11, 2010.

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  1. 2in10

    2in10 Super Moderator Staff Member

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    Just buy as much as you can afford you will use it soon enough. Go to the action panel on the right and click on use calculators.
     
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  3. wfb2270

    wfb2270 Corkscrew Tentacle Anemone

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  4. kcbrad

    kcbrad Giant Squid

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    For the magnesium supplement, do I want magnesium sulfate or magnesium chloride?
     
  5. kcbrad

    kcbrad Giant Squid

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    Oh I see. Okay, thank you! Thanks for all the help. I really appreciate it.


    Thanks!!
     
  6. 2in10

    2in10 Super Moderator Staff Member

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    I use magnesium sulfate because it is effective against bryopsis should you ever have the misfortune to get it. Kent Tech M is the best to defeat bryopsis.
     
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  7. ReefSparky

    ReefSparky Super Moderator Staff Member

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    You can estimate it, using approximately a gallon and a half of water is displaced by one cubic foot of solids like sand or rock. Here's some reading if you like.

    Good advice above. I like Steve's advice on knowing your water change water's numbers first. Also, Night-Rida's advice can be combined with Steves. He correctly advises to get the mag to the correct level first--as this will facilitate getting the alk and calcium in line more easily. If you do this, but do it to the water change water first, it will be good practice for you. Once you get your water change water at the perfect param's, you'll be more confident, and more able to use that experience with your tankwater after the water change has been done.
     
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  9. 2in10

    2in10 Super Moderator Staff Member

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    That is why we are hear to learn and help.
     
  10. 2in10

    2in10 Super Moderator Staff Member

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    Cool to know thanks
     
  11. kcbrad

    kcbrad Giant Squid

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    Okay, I will buy some magnesium sulfate then. And I'll get 8 pounds. Does that sound okay?

    Thank you!! That's very helpful.

    This whole coral thing is very confusing to me!! I'm sure I'll catch on eventually. ::)
     
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  12. kcbrad

    kcbrad Giant Squid

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    Sorry - one more question!! If I use the Kalkwasser (calcium hydroxide) do I also need to use calcium chloride? And do I need sodium bicarbonate? That was two questions - woops! ;)