low Cal and low Mag

Discussion in 'Water Chemistry' started by SaltyClown, Aug 9, 2014.

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  1. SaltyClown

    SaltyClown Sea Dragon

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    Last week my Cal was 390 so I started dosing more during the week. Today it's 350...what the heck? I've never had it drop that low, that quick.

    Mag was 1290's, so I thought I'd add the proper amount of Mag. Now both are low.

    What just happened?

    Thank is 75 gals, with a few LPS and 1 sps.

    Any suggestions?
     
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  3. Billme

    Billme Eyelash Blennie

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    What are you using for salt and how often are you changing water?
     
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  4. Mr. Bill

    Mr. Bill Native Floridian

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    Also, what test kit are you using?
     
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  5. SaltyClown

    SaltyClown Sea Dragon

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    Reef crystals. I do a 4 gallon water change every weekend.
     
  6. SaltyClown

    SaltyClown Sea Dragon

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    Reef crystals. I do a 4 gallon water change every weekend.
     
  7. Mr. Bill

    Mr. Bill Native Floridian

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    One thing I've learned is that if something doesn't look right, it rarely is. With low Mg, dosing Cal or Alk won't necessarily raise their levels. However, dosing Mg never fails to produce the desired results. I'd highly suggest getting a second opinion on your parameters rather than risking overdosing your tank. JM2C
     
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  9. Billme

    Billme Eyelash Blennie

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    As Mr Bill pointed out, double or triple check your test results. Depending on the size of your tank, the water changes alone should keep your perameters near normal. What test kits are you using?
     
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