maintaining kh

Discussion in 'Water Parameters and Additives' started by newb, 18 Dec 2010.

  1. newb

    newb

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    raised my kh from 7 to 8 by adding bi-carb last night.to keep it there do i add the same amount of bi-carb every night or do i add it weekly.
     
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  3. Reef Maniac

    Reef Maniac MASA Contributor

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    That would depend on your alkalinity demand (i.e. the amount of hard corals and general bio-load), and on how lazy you are...

    I would suggest that you first determine the alk demand - test your kH about 12 hours after adding the bicard, and then again after 24 hours. The difference between those two readings will tell you how much alkalinity is "used up" in 24 hours, and will then be a guide as to how much bicarb you need to add every day. If this is low, then you can add every few days, or even every week. If your demand is high, then you would have to add every day.

    You could, of course make a concentrated solution, and then just add a few measures of concentrate every day - that is less PT than having to dissolve the bicarb in RO water before adding it every day...

    Hennie
     
  4. newb

    newb Thread Starter

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    thanks for the reply reef maniac.much appreciated.
     
  5. IMarine

    IMarine

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    Hi newb as Reef Manic says good advice,what you can do is measure you mag and raise it to about 1400 first,then measure cal and raise it to 400 but dose a day apart, then measure you kh and raise it to 10 and dose a day apart then you will find that your parameters will be more stable, and then you can work out how much your tank consumes of kh,cal in 1 day,you can then do a drip system of kh if you want
     
  6. newb

    newb Thread Starter

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    ok.you know this might be common knowledge to most guys but something i feel is a definite must know for us noobs.a sticky in order? just a suggestion.
     
  7. Nemos Janitor

    Nemos Janitor

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    A sticky like the one at the top of this section. :)
    Vatso Dosing Table - Marine Aquariums of South Africa

    Feel free to ask questions and post additions to enhance the sticky.
     
    Last edited: 18 Dec 2010
  8. Reef Maniac

    Reef Maniac MASA Contributor

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  9. newb

    newb Thread Starter

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    awesome you guys.:thumbup:
     
  10. mariusmeyer

    mariusmeyer

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    I add my bicarb to my topup tank. I worked out the daily demand to determine the dosage and multiplied this by the number of days the top up tank lasts.
     
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