test kits - which ones?

Discussion in 'Water Chemistry' started by cira050, Aug 19, 2009.

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  1. cira050

    cira050 Torch Coral

    Joined:
    Apr 16, 2009
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    1,165
    I currently test for:
    calcium
    magnesium
    ph
    nitrate
    nitrite
    ammonia
    salinity
    And all of those are in check. my question is, do you recommend i buy an alkalinity and phosphate tester? I want coralline and i hear if you have phosphates that kills coralline. If my mag and cal levels are in check, does that mean my alkalinity has to be somewhat acceptable? this could be completely wrong but i just heard it somewhere. I have never tested for alkalinity with this tank. does that mean the alkalinity is garunteed to be low? because ive never dosed for it (that is if you even dose for it ;D )

    Thanks,
    ryan
     
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  3. steve wright

    steve wright Super Moderator

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    hi Cira050

    Yes - testing for Phosphates is ideal IMO , not only does it impede coralline growth (which is a good or a bad thing depending on your perspective) more importantly
    Phosphate is the food of many species of undesireable algae - so keeping on top of this nutrient is ideal IMO

    yes - testing for Alk or DHK (same thing different terminology) is required on top of Calc and Mag - the 3 are linked and its possible to have acceptable levels on the 2 you measure but have a problem with the one your not measuring
    measure all 3 IMO

    Steve
     
  4. cira050

    cira050 Torch Coral

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    Thank you steve for your input. And congrats on the new position in 3reef. Anyways, what if my alkalinity is too high or too low? how do i treat that? i guess same question goes for phosphates

    Thanks,
    Ryan
     
  5. steve wright

    steve wright Super Moderator

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    Thanks Cira050

    Phosphates - most people would use a Phosphate reactor with GFO resin , many brands available Rhowphos is one, Phosban is another - and this chemical media absorbs Phosphates and does not leach them back , they can also be used bagged up and in a cannister filter if you dont have a reactor, not as efficient that way but IME still eventually effective

    Alk to high or to low - can result in colour loss, bleaching, burning of corals and other problems

    dont make any sudden changes in any case as creatures that have adapted to gradual increases or decreases can react badly to any sudden reversals of those situations

    so test 1st and post your results - thereafter advice given will be tailored to your specifc tank and situation

    but to get you started on your research - Alk to high could be reduced by increasing calcium level

    alk to low can be increased by adding lime water - but this would then reduce your calc level

    its complicated - and there are far more qualified people than me to talk about it

    but the main thing is dont change anything to quicky - if indeed you need to at all

    Steve
     
  6. AZDesertRat

    AZDesertRat Giant Squid

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    Once your tank is mature ammonia, nitrites and even nitrates aren't tested often if at all.
    I rely on Salifert kits for calcium, alkalinity and phosphates and also have Salifert for magnesium, silicates and some others but I rarely use them.
    For salinity nothing compares to a refractometer and for pH a monitor or controller.