Namibia sea salt

Discussion in 'Water Parameters and Additives' started by nakoma, 23 May 2009.

  1. nakoma

    nakoma

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    ok in namibia they have this system they drian slat water into a pan just water and then they leave it to evaporate and then they take the salt and ship it to who knows where now i can get some of this salt from my budy who comes to visit from namibia if i want but do i really want it and is it safe i dont like to take a chance i am more than happy to buy my instant ocean once a week tell us what you think
     
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  3. jacquesb

    jacquesb Retired Moderator

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    I have NO idea - test it and see?
     
  4. nakoma

    nakoma Thread Starter

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    i am going to mix a batch and then test for everything i can think of but i am kinda sceptical i am not expecting any good results
     
  5. Reef Maniac

    Reef Maniac MASA Contributor

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    This will not be good, unfortunately.

    As the water evaporates, the calcium becomes super-saturated (like all the other minerals as well) and reacts with the carbonates in the water to form calcium carbonate. This is rather insoluble in water with a high pH, so your "sea water" will have a *very low* calcium and alkalinity content. I'm pretty sure that some of the other elements would also be lost this way.

    A second problem is that there will be a certain amount of plankton in the water, and this will die and pollute the salt to some extent. This might be quite harmless for animal or human consumption, but will probably lead to algae blooms, or worse, in a tank.

    Hennie
     
  6. nakoma

    nakoma Thread Starter

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    thanks Reef Maniac i will give this a pass then and not get the salt from namibia and keep using my instant ocean it is safer i dont want to kill my fish i have hade for over 7 years ;)
     
  7. jacquesb

    jacquesb Retired Moderator

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    Nakoma - won't you be prepared to still do the testing/experimentation for us, please?
    And then post your results here?

    It would still be a VERY interesting experiment, for everyone else to learn from?
     
  8. Reef Maniac

    Reef Maniac MASA Contributor

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    Yes, buffer and calcium is relatively easy, and cheap, to add. IF the other elements are intact, AND there is no elevated levels of nitrates and phosphates in the water, then people with fish-only systems might just be able to save some money... I would still not use it on my reef tank, though. Obviously, the tests would have to be done by a professional, using more sophisticated techniques than we have available in the hobby, to get meaningful results.

    Hennie
     
  9. nakoma

    nakoma Thread Starter

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    sure i can do that wil ask my buddy to mail me a 2 kg bag of the natural sea salt and mix a mixture i will have it tested on a XRF for anything i am a lab technician
     
  10. nakoma

    nakoma Thread Starter

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    i will also send a sampe away for analisis ;)
     
  11. RiaanP

    RiaanP Moderator

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    Sent two samples,
    1 namibian SW
    1 Instant Ocean SW

    Just ensure that they are both exactly at the same salinity.

    And let them compare that to each other.

    Now that result will be interesting.:thumbup:
     
  12. nakoma

    nakoma Thread Starter

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    sure i got some instant ocean i will send them the 2 samples i should have the sample of salt this week
     
  13. 459b

    459b Moderator MASA Contributor

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    this is how SA makes its table salt and also the same salt you add to your saltwater swiming pool.
     
  14. jaquesdp08

    jaquesdp08

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    this would be quite intresting to see the results...
     
  15. jacquesb

    jacquesb Retired Moderator

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    Thanks 459b! Yeah - I KNOW! That's EXACTLY WHY I want to have the test done.... It's also the same salt they sell as "pond salt" ;)

    You've probably been to Velddrif? Hey? Or P.E?
     
  16. tinusb

    tinusb

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    Now wouldn't it be nice if the salt here in Namibia can be used.... I see $$$... of course, we can always make plans with frags! :razz: hehehe joking :)
     
  17. nakoma

    nakoma Thread Starter

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    LOL well i will mix the batch as soon as i get it then we will all see the results i will send a sample to have it analised on a XRF
     
  18. 459b

    459b Moderator MASA Contributor

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    was born in PE, so remeber those pans well. Also been to Velddrif a few too many times.
     
  19. nakoma

    nakoma Thread Starter

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    tell us a bit more of how it gets done this draining of the sea water and making the salt
     
  20. 459b

    459b Moderator MASA Contributor

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    water gets drained into a shallow pan. the inlet is then sealed off and the water evaporates leaving the salt behind. From there it gets collected and cleaned to varying degrees, depending on its use.
    problem is different organisms start growing as the salinity changes. as the salinity increases, halophilic (salt loving) bacteria start to flourish, this is the intense red/orange/pink you see in the ponds.
     
  21. 459b

    459b Moderator MASA Contributor

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