What is this?

Discussion in 'ID This!' started by Ashlee, May 29, 2016.

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  1. Ashlee

    Ashlee Plankton

    Joined:
    May 29, 2016
    Messages:
    5
    My live rock is turning white and now has multicolor spots on it. I attached a picture, so maybe someone can shed some light.

    pH 8.0
    Ammonia 0
    Nitrite 0
    Nitrate 10 ppm
    Calcium 480
    Salinity 1.0215 but it's swing arm hydrometer so it's not accurate but general ball park
     

    Attached Files:

    Ashlee, May 29, 2016
    Ashlee, May 29, 2016
    #1

    2. Click Here!

  2. civiccars2003

    civiccars2003 Great Blue Whale

    Joined:
    Mar 18, 2010
    Messages:
    2,827
    Location:
    Akron Ohio
    coralline algae
     
    civiccars2003, May 29, 2016
    civiccars2003, May 29, 2016
    #2
    DSC reef and insanereefer420 like this.
  3. insanereefer420

    insanereefer420 Fire Worm

    Joined:
    Sep 30, 2015
    Messages:
    157
    Location:
    Mckinney, TX
    When did you put this in the tank? White stuff looks like the die off i had on my rock when i set up the first time
     
    insanereefer420, May 29, 2016
    insanereefer420, May 29, 2016
    #3
    DSC reef likes this.
  4. Lovemyreef2015

    Lovemyreef2015 Flamingo Tongue

    Joined:
    Mar 13, 2016
    Messages:
    112
    Location:
    Brevard county
    White is most likely coralline die off. I'd get that salinity up and try to get a refractometer for accuracy. Still though, I'd get it up to 1.024-25 on the hydrometer.
     
    Lovemyreef2015, May 30, 2016
    Lovemyreef2015, May 30, 2016
    #4
    DSC reef likes this.