acro base receding

Discussion in 'Coral Health' started by proreefer, Mar 14, 2012.

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  1. proreefer

    proreefer Feather Star

    Joined:
    Jun 18, 2011
    Messages:
    776
    Location:
    georgia
    no matter now long in this hobby ever once in a while you need some help so here's my plee
    water
    nitrate 0 to 1
    nitrite 0
    phosphate 0 - also run gfo reactor and charcol bags if needed
    cal 480 +
    mag 1490
    alk dkh 9 to 12
    add trace elements weekly + 5 tsps stronium every two weeks adds up to 4 to 6 ppm or ocean reef level
    tank 220g
    60g sump
    asm 4xx skimmer works flawlessly
    5000gph + total flow
    3- 400 watt 15K mh w/ 320 watts attinic 16" over water
    all lights run 8 hours per day attinics 10
    ro/di water only with 0 dts
    chiller 1/2 hp tradewind set to 78 to 80
    tank is over 10 years old with 20 + years of about 900 lbs of rock
    use a mag 7 w/filter insump to clean particals from water i clean it weekly
    6+ deep 2mm sand bed thats full of life doing very well

    ok here's my problem
    acro base recession the corals do not die but the base will recede when full colony statis has been acheaved. its hard for me to put a handle on. my only theory is the branches must be blocking the light to the base any ideas would help thanks.
     
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  3. ReefBruh

    ReefBruh Giant Squid

    Joined:
    Jul 11, 2010
    Messages:
    4,813
    Location:
    Clearwater, FL
    I believe that's your problem because its the same even for my birdsnest. But if it continues to keep rising then you have a slow RTN going on. I hope that was right.
     
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  4. Corailline

    Corailline Super Moderator Staff Member

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    19,652
    Location:
    It is a dry heat, yeah right !
    I agree with your assessment.

    As the sun moves across the sky during the day, I imagine most if not all of a coral receives a fair amount of lighting at some point in the day, depending on the angle. Unfortunately most home hobbyist can not simulate this.

    If only the base is showing receding in shaded areas only I would not be too concerned. You can sometimes see examples of this in older established sps dominate tanks if you look.

    Tank is 10 years old, jezzzzzz, that is devotion.
     
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  5. 2in10

    2in10 Super Moderator Staff Member

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    Aug 6, 2009
    Messages:
    19,258
    Location:
    Sparks, NV
    I have noticed some of my colonies do the same. As long as it doesn't continue as stated by Reefbruh all should be OK. Check that you are getting good flow around the bases.
     
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  6. evolved

    evolved Wrasse Freak

    Joined:
    Feb 26, 2010
    Messages:
    4,257
    Location:
    Phoenix, AZ
    Alk 9-12 concerns me a bit.

    Are you varying it that much in the span of a few days, or do you just try to maintain it somewhere in that range?

    Alk swings (more than 1dkh in a 24hr period) can do bad things.
     
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  7. proreefer

    proreefer Feather Star

    Joined:
    Jun 18, 2011
    Messages:
    776
    Location:
    georgia

    thanks reefbruh i wish i could fix it.


    I'm dedicated and medicated;D


    thanks for the info 2in10 your input is great to have as always:cheesy: