Urgent help needed SPS woes

Discussion in 'Urgent Help Needed' started by nate, 21 Apr 2011.

  1. nate

    nate

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    Hi Guys

    I have done quite a bit of reading on the forum around what this could be, but I must admit I am really confused as I am new to SPS.

    Iodine deficiency, Alk burn, something eating it? Whatever it is, it started out isolated to a single SPS, but now it appears to be affecting the ones close to it.

    Some details:
    Tank has been running almost 6 months. I dose with Brightwells additives
    This particular acro has been in the tank just under 3 months and was doing fine. Pic was taken just after lights came on this morning.

    Parameters:
    SG - 1,026
    Cal - 420 ppm
    Alk (tropic Marine 7 and Salifert 10) - Don't know which to believe
    Mag - 1350
    Temp 25 -26
    PH - 8.2

    Lighting:
    T-5 and 250W 20K MH

    Flow:
    Plenty with 3 X Vortech MP40's

    The affected area is on the left branch where part seems to be missing/eaten chemically or by some thing else. The acro has a symbiotic crab living in it.
    [​IMG]

    I would appreciate any help as I would hate to find out the hard way with a couple of white sticks left in my tank :(

    Thanks....
     
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  3. Monti

    Monti

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    Looks to me like something has been munching it. Just be sure its the symbiotic acro crab and not the little fuzzy blue eyed crab that nibbles away at acros.
     
  4. 459b

    459b Moderator MASA Contributor

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    What fish do you have?
     
  5. nate

    nate Thread Starter

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    I have 3 yellow tangs and a true perc. Thats it.

    Hmmmm crabs. I think the penny just dropped. The one in the acro is a tiny pink smooth crab, but I am sure I have two or three lurking in my LR. I guess I need to go crab hunting.

    Thanks for the quick responses
     
    Last edited: 21 Apr 2011
  6. rakabos

    rakabos

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    pic of the crab?
     
    Last edited: 21 Apr 2011
  7. nate

    nate Thread Starter

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    Hey Rakabos, you can actually see the little devil near the base of the coral. I will try and get a better picture tonight.

    I guess the crabs must go. Time to build a crab trap.
     
  8. rakabos

    rakabos

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    Why do you need a trap, just lift him off with your hand, he wont bite (much) :D
     
  9. nate

    nate Thread Starter

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    Hahaha... better idea, I will get the wife and kids to do that chore :p
     
    Last edited: 21 Apr 2011
  10. rakabos

    rakabos

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    If its on the coral, just lift the coral out the water if u can and use a screwdriver or similar to get the bugger off
     
  11. nate

    nate Thread Starter

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    Thanks bro. Gave the wife the instructions and the crab has been sumped :thumbup:

    Thanks man.
     
  12. rakabos

    rakabos

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    Ive always seen these crabs on the acro's in the shops and wondered how good or bad they really are. I mean he could be on it for shelter or food. I had a seemingly dosile blue legged hermit who decided one day that a red mushroom would make a nice snack. Well suffice to say he is now the captain of the clean up crew in the sump
     
  13. Nsteyn

    Nsteyn

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    @Monti

    Your discription of the fuzzy crab with the blue eyes is perfect for one that sits in my sps, and for a while I wasnt sure if he is good or bad?

    Do you have a name for him, so that I can do a bit of reading ?

    Tnx

    Niel
     
    Last edited by a moderator: 26 Nov 2015
  14. Monti

    Monti

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    Im not totally sure of the name, but the fuzzy one with blue eyes definately munches corals- he chiselled away a chuck of my green acro over the course of a few days
     
  15. sweetnsour

    sweetnsour

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    x2 Big no no....
     
  16. Nsteyn

    Nsteyn

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