cup coral

Discussion in 'Coral Health' started by prerymt, Mar 4, 2013.

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  1. prerymt

    prerymt Plankton

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    Feb 18, 2013
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    hi does anyone know why my cup coral looks like it has blisters on it, it was doing great then all of a sudden a few days ago it started getting these bubble looking blisters on it and today one looks like it popped.

    nitrate-10
    phosphate-5
    calcium-450
    carbonate-15
    salinty-25
    ph-8.3


    thanks
     

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  3. Corailline

    Corailline Super Moderator Staff Member

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    It is a dry heat, yeah right !
    Last edited: Mar 4, 2013
  4. _alex_

    _alex_ Feather Duster

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    If alk is that high I would start there. These corals are sensitive to alk swings, and your alk is on the high side!
     
  5. 2in10

    2in10 Super Moderator Staff Member

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    Probably alk burn
     
  6. prerymt

    prerymt Plankton

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    how do i bring it down?
     
  7. Corailline

    Corailline Super Moderator Staff Member

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    It is a dry heat, yeah right !
    Are you dosing or supplementing anything?
     
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  9. prerymt

    prerymt Plankton

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    i added some dk builder a couple days ago, i was afraid it was going to drop below 10 i guess i should let it come down and then if needed i will bring it back up
     
  10. Corailline

    Corailline Super Moderator Staff Member

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    It is a dry heat, yeah right !
    You can let it come down to 8-9 on it's own.

    If you do not have a magnesium test kit you may want to look into that value as well.

    Once it comes down dose much smaller amounts based on your values. Small corrections are easier to control and much less stressful on your corals.