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phosphate spike in my reef tank

Discussion in 'General Discussion' started by reefer sutherland, Mar 14, 2015.

  1. Mar 14, 2015 #1
    reefer sutherland

    reefer sutherland

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    I just upgraded my 29 gallon reef tank to a 40 gallon cube everything has been pretty good but last night I checked my phosphates and they were at about 5.0 I don't quite know how bad that is I know I don't want any phosphates at all what is the best and safest way to quickly reduce the phosphate level in my tankplease let me know what you think I want to get my baby back on track
     
  2. Mar 14, 2015 #2
    saltclg

    saltclg Inactive User

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    Gfo reactor
     
  3. Mar 14, 2015 #3
    F.D. Reefer Fort dodge

    F.D. Reefer Well-Known ReefKeeper

    506
    Fort dodge
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    +1 on Gfo reactor ,but it's always best to find the cause of the high Phos level.
    Over feeding?
    Exhausted DI resin?
    I would start by checking TDS of RO water. And the go from there.
     
  4. Mar 14, 2015 #4
    Bud West Des Moines, IA

    Bud Loves Bacon Website Team Board of Directors Leadership Team GIRS Member Vendor

    8,876
    West Des Moines, IA
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    +1 for that (test RODI), but GFO now is a waste of money. If your P is truly that high (not a faulty test kit) then you need to do some really big water changes, that's cheaper
     
  5. Mar 14, 2015 #5
    reefer sutherland

    reefer sutherland

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    I just did a 6 gallon water change last night it did not change the level much how big of a water change should I do and how long should I wait now?
     
  6. Mar 14, 2015 #6
    reefer sutherland

    reefer sutherland

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    I don't really know if my TDS meter is working correctly when I put it to in the TDS meter reads 34 when I put it to out it reads 45 I haven't really been paying much attention to it whenI use it because I just put new resin in it and have only used it a few times since
     
  7. Mar 14, 2015 #7
    Bud West Des Moines, IA

    Bud Loves Bacon Website Team Board of Directors Leadership Team GIRS Member Vendor

    8,876
    West Des Moines, IA
    Ratings:
    +1,818 / 14 / -0
    Dilution is the solution to pollution!

    40 gallon tank with 5.0 ppm phosphate

    Change 6 gallons: 6/40 = 15%, 5.0ppm x 0.15 = 0.75ppm removed, result = 4.25ppm

    most test kits are very difficult to differentiate anything over 1ppm, what kit are you using?

    Best solution is to do a roughly 90% water change. Or you can do two back-to-back 50% or 75% changes

    Check your RODI first. You are using RODI, right?
     

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