Zoanthids closed

Discussion in 'Coral' started by KDtrey5, Aug 13, 2012.

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  1. KDtrey5

    KDtrey5 Coral Banded Shrimp

    Jun 29, 2012
    Green Bay, WI
    So I caught my large hermit crab crawling all over my zoanthid colony today. Is it normal for them to be closed or half opened for a couple of days? Also is it too much to add a bangaii cardinal and frogspawn at the same time? Thanks
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  3. Biocube

    Biocube Giant Squid

    Feb 17, 2011
    Northern, IL
    How big is your tank?

    My Zoas will close for about a day if anything seriously upsets them, they are pretty hardy.
  4. SourGummy

    SourGummy Astrea Snail

    Aug 7, 2012
    my hermit always walk over my zoa, they usually open back up within a couple mins after the hermit left, guess they are used to it.
  5. reefermadnes

    reefermadnes Bristle Worm

    May 27, 2012
    How long have you had the zoas. If their new it could be a lighting or flow issue. As far as adding more it depends on when you last added fish to your system. You can add as many corals in at a time as you want the only thing corals do is use up calcium and alkalinity, but when you add fish you should wait 2 weeks to a month in between adding fish to give your bacteria some time to catch up to the bio-load. Hope this helps ya a little bit.
  6. Brendan Z

    Brendan Z Spanish Shawl Nudibranch

    Oct 25, 2011
    Orwigsburg, PA
    Keep an eye out for Zoanthid eating nudibranch's. I bought some zoa frags and after a couple of days in my system they closed up and wouldn't open. I thought they were just unhappy with their location, so I moved them around the tank to different locations, nothing helped, finally I found one of these little guys crawling around. I spent weeks trying to manually remove all these little pests but once I made some progress the Zoa's did open back up. I hope that this isn't your problem but just wanted to give you a heads up about it.

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