zoas, interesting colour change

Discussion in 'General Discussions and Advice' started by mandarinman, 3 Nov 2010.

  1. mandarinman

    mandarinman

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    i bought some a grade zoas ten months ago and fragged them and left them in my frag cum mandarin tank. i feed fresh brine shrimp daily and have dosed an amino supplement once a week for two weeks and look what some of my frags turned into! ps the elegance and starfish are for colour reference. the question is, have they coloured up or lost photosynthetic bacteria ?[​IMG][​IMG]
     
    Last edited: 3 Nov 2010
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  3. sweetnsour

    sweetnsour

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    Manderinman are those the ones on auction?
     
  4. Pads

    Pads

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    My guess is they've coloured up possibly gaining zoox. I've seen a few of my colonies bleach but they turned white gradually. How is the carpet tissue of the colony? Are the polyps extending fully. These are also charateristics of their health. Looks lekker to me. The smaller frags of zoas may take a while to double in size but once you've got 50-100 they multiply far faster.
     
  5. mandarinman

    mandarinman Thread Starter

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    it may be a sister frag to the ones on auction. i have been collecting frags for a while although i seem to remember the ones on auction are green tipped whereas these are yellower.
     
  6. mandarinman

    mandarinman Thread Starter

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    the carpet tissue on the frags are all healthy
     
  7. poiromaniax

    poiromaniax MASA Contributor

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    I believe that we dont know enough about different zoa requirements.

    I have quite a few different types of zoas and have found that some dull out under less intense lighting while others are fine.

    I have a few colonies that changed dramatically when i switched over to MH.

    My guess is that some are found in deeper waters than others (wild) and some are just aquacultured under more powerful lighting.

    heres some before and after pics of the ones i was talking about:

    Before:
    [​IMG]

    Nowadays:
    [​IMG]

    Before:
    [​IMG]

    After:
    [​IMG]
     
    Last edited: 3 Nov 2010
  8. Pads

    Pads

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    True. The zoox would probably increase/decrease according to the power of the lighting which may well have an effect on the colour of the colony. But on first observation I'd say I think they look healthy provided there is no slime engulfing any of the polyps and that the polyps are extending & retracting in normal fashion.
     
  9. mandarinman

    mandarinman Thread Starter

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    really inspiring! im tempted to buy all the brown zoas i see and see how they colour up. mine are under one sylvania coralstar and a reeftek 10000k both 54 watt bulbs
     
  10. viper357

    viper357 Admin MASA Contributor

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    Agreed, I have noticed on some of the overseas forums/websites that they refer to certain zoa's as "deep water zoa's", I just recently moved a small frag of zoa's from my T5 lit tank into my MH nano and already there is a difference in the colouring.
     
  11. mandarinman

    mandarinman Thread Starter

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    this really intrigues me, i am goin to photograph zoas when i buy them to compare over time
     
  12. poiromaniax

    poiromaniax MASA Contributor

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    Just remember to acclimate to stronger lighting properly otherwise the zoas might bleach
     
  13. mandarinman

    mandarinman Thread Starter

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    definately, fortunately my lighting is not strong.
     
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