acans dying - what that coming out?

Discussion in 'ID This!' started by dxbmax, Jul 25, 2013.

to remove this notice and enjoy 3reef content with less ads. 3reef membership is free.

Page 1 of 2
  1. dxbmax

    dxbmax Astrea Snail

    Joined:
    Apr 17, 2013
    Messages:
    26
    So my Acans started losing their bright green color and I wondered what it could be.

    Water parameters looked ok, all in range.

    Since they were on the sandbed, directly under the light I moved them to a shadow area.

    Like many of my other projects, I thought, why not take some pictures... eventually turned it into a timelapse video.

    Interesting find - please see marked areas below in the picture and check the same areas in the video link just below.. VERY CURIOUS WHAT THIS COULD BE

    [​IMG][/URL][/IMG]


    VIDEO LINK - - > (1080p please!)
    THIS COULD PROBABLY BE WHEY THEY ARE LOSING COLOR (in case its a pest!)

    ALL SUGGESTIONS WELCOMED!
     
    dxbmax, Jul 25, 2013
    dxbmax, Jul 25, 2013
    #1

    2. Click Here!

  2. Corailline

    Corailline Super Moderator

    Joined:
    Sep 8, 2010
    Messages:
    19,652
    Location:
    It is a dry heat, yeah right !
    If you could post the link please to the video I will see if I can fix it.

    Lighting type please?
    Age of tank?
    Specific values for Ca/Alk/mag...need more information. pH if you do not have a ALK.
     
    Corailline, Jul 25, 2013
    Corailline, Jul 25, 2013
    #2
  3. banthonyb71

    banthonyb71 Millepora

    Joined:
    Feb 16, 2010
    Messages:
    947
    From the looks of even the ones with color, they look irritated by somthing. Plus 1 on above. How often are your water changes?
     
    banthonyb71, Jul 25, 2013
    banthonyb71, Jul 25, 2013
    #3
  4. dxbmax

    dxbmax Astrea Snail

    Joined:
    Apr 17, 2013
    Messages:
    26
    Link to video Acan Lord Coral (Acanthastrea lordhowensis) HD - Timelapse - YouTube

    80gal
    7 month old tank
    10% weekly water change
    Acans in tank since 2 months, did fine and responded to spot feeding (small sticky tentacles would take in food - now I don't see the tentacles)
    Calcium - 440
    Mag - 1320
    pH - 8.2 in the day, 7.9-8 during night
    phosphates - 0

     
    Last edited by a moderator: Jul 26, 2013
    dxbmax, Jul 26, 2013
    dxbmax, Jul 26, 2013
    #4
  5. barbianj

    barbianj Hammer Head Shark

    Joined:
    Sep 27, 2009
    Messages:
    2,634
    Location:
    Port Washington, WI
    What is your salinity and alkalinity? How do you test for each?
     
    barbianj, Jul 26, 2013
    barbianj, Jul 26, 2013
    #5
  6. Corailline

    Corailline Super Moderator

    Joined:
    Sep 8, 2010
    Messages:
    19,652
    Location:
    It is a dry heat, yeah right !
    I see a Barnacle at the very top of the formation, harmless.

    Are you target feeding them?
     
    Corailline, Jul 26, 2013
    Corailline, Jul 26, 2013
    #6

    7. Click Here!

  7. dxbmax

    dxbmax Astrea Snail

    Joined:
    Apr 17, 2013
    Messages:
    26
    @barbianj - sg 1.25 (refactometer)
    alk - 9dkh ( API)

    @corailline - which one is a barnacle please? the top marked or the one on the right (between 2 heads)?
    also, could it be bothering my acans??
     
    Last edited: Jul 26, 2013
    dxbmax, Jul 26, 2013
    dxbmax, Jul 26, 2013
    #7
  8. Corailline

    Corailline Super Moderator

    Joined:
    Sep 8, 2010
    Messages:
    19,652
    Location:
    It is a dry heat, yeah right !
    The top
    The other I can not make out.
    It is a large Amphipod?
     
    Corailline, Jul 26, 2013
    Corailline, Jul 26, 2013
    #8
  9. Biocube

    Biocube Giant Squid

    Joined:
    Feb 17, 2011
    Messages:
    3,499
    Location:
    Northern, IL
    If you plan to keep using API I would recommend not using their white 5ml lines but use a syringe to measure out 5ml of water.

    You will get a more accurate result.
     
    Biocube, Jul 26, 2013
    Biocube, Jul 26, 2013
    #9
  10. Corailline

    Corailline Super Moderator

    Joined:
    Sep 8, 2010
    Messages:
    19,652
    Location:
    It is a dry heat, yeah right !
    No I do not think the Barnacle is the coral's issue.

    It maybe Amphipods, too much light (they take a long while to recover). I would sure start target feeding the coral.
     
    Corailline, Jul 26, 2013
    Corailline, Jul 26, 2013
    #10
Page 1 of 2