DIY Randy's Recipe - Maintaining Calcium, Alkalinity And Magnesium

Discussion in 'Equipment / DIY / Reviews' started by MagicJ, Aug 9, 2011.

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  1. MagicJ

    MagicJ Moderator

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    Cheers - it reminded me to repair some of the lost images on page 1 :)
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  2. Andries

    Andries Member

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  3. Joele

    Joele Member

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    I bought most of mine from the shop below, no problems with residue etc.. very happy compared to expensive mixes available in most aquarium stores...

    Under 'suppliments' then '100% reef safe'
    http://www.100percentreefsafe.com.a...!/~/category/i.d=1804173&offset=0&sort=normal

    To the first post, wouldn't using epsom salts (magnesium sulfate) result in some very high sulfate levels? that doesn't cause problems? EDIT: Sorry just noticed it was mentioned in the OP, maybe time to update with new sources readily available..
    Last edited: Sep 21, 2013
  4. Buddy

    Buddy Member

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    I have the stuff from 100% reef safe. Does the job and its cheap, couldn't be happier!
  5. Miller

    Miller Member

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    I been using Randy's mix for the last year and it's worked out great for me nice and cheap and works well
    I've just been using super market stuff eg damp rid and Epsom salts no dramas at all
    But I Just got a bulk order of calcium and mag 2 part same as 100% reef safe sell just because it was cheap and someone was shutting there system down
    But all in all either one is great value compaired to buying Red Sea or the same in another brand
  6. TheJordans

    TheJordans Member

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    Aaaaand, "bookmark" :D

    Thanks for all of your time and effort, @MagicJ !!
  7. chrisg_75

    chrisg_75 Member

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    OK,
    So looking to increase my magnesium levels to help combat some GHA that is trying to take over.

    I have got both magnesium sulphate and chloride ready to mix. I am just unsure as to the right amounts to add to make up the mixture.

    I Know its 3 cups of sulphate and 5 cups of chloride.

    As I only have an 80L tank I only need to mix up 1L and need to change cups to gms so I can measure out the right quantity for 1L mixture.

    I have found differing information as to weight of 1 cup of sulphate and chloride.

    Could you confirm if this is correct for 1L of mag mixture.

    I worked out to make 1litre I add 124.7gms of mg sulphate and 203.9 gms of mg chloride into the bottle and mix it all up.

    Thanks for the help.

    Chris
  8. The Reefuge

    The Reefuge Administrator

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    Hello everyone,

    I am going to make a calculator for this. Please let me know how you would like it to function.

    Thanks.
  9. chrisg_75

    chrisg_75 Member

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    My problem was if I wanted to make X Litres of solution, how much gms of product do I add to the RO water. I am not sure it is worthwhile to say how much you want to raise say calcium by because you're not going to add the solution in all at once anyway so kind of defeats the purpose a little maybe. The other thing might be what would a reasonable dosing rate be dependant on your tank vol.

    I'm a total noob to supplements etc so my comments might be off but that is my basic way of thinking anyway
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  10. macca_75

    macca_75 Member

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    If you make the recipes according to the amounts specified, you end up with a solution of a particular strength.

    You then:
    1. Measure
    2. Wait a specified time (about a week or so)
    3. Measure again.
    With the 2 measurements and a fixed period of time, you can the calculate exactly what your system consumed.
    You then use a balling calculator to figure out the amount of solution (which has a known strength) you need to add per day.

    Hope this makes sense.
  11. Nicksy23

    Nicksy23 Member

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    Love posts like these as they are so educational. Looooove it
    Cheers
  12. josh

    josh Member

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    im just trying to work out something... Im just about to make up some (mag) but i dont have enough to make up 3 liters so im trying to work out how much would go into each liter,so now the way i have worked it out Is if 1.4kg goes into 3 liters totle vol wouldnt i just divide 1.4kg into 3 wich works out to be about 466g per liter, does this sound right? Thanks for any help
  13. josh

    josh Member

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    can someone plz help me with this :)
  14. Joele

    Joele Member

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    If the recipe said 1.4kg into 3 litres then yes each litre would need 467gm
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  15. BattleSheep

    BattleSheep Member

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    Thanks for this I am adding to my collection of information for the day I am up and going. :)
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  16. RobbieMVFC

    RobbieMVFC Member

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  17. MagicJ

    MagicJ Moderator

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    No apology required :)

    But, yes, there is a link to the Flash version of this calculator on Page 1.
  18. Sam Parker

    Sam Parker Moderator

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  19. Felicity goodall

    Felicity goodall Member

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    I read it all
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  20. Nicksy23

    Nicksy23 Member

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    Loving the information, thank you
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    • Cheers! Cheers! x 1

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