Unknown growth

Discussion in 'Reef Aquarium Discussion' started by john pocock, Oct 11, 2017.

  1. john pocock

    john pocock Member

    Joined:
    Jan 12, 2017
    Messages:
    7
    Likes Received:
    0
    I found this growth in my tank. I’m wondering if I should remove it or is it OK? Does anyone know what it is?

    40C91C91-CB0A-476E-B3D8-427AE3EE0288.jpeg
     
    Tags:

  2. Maritimer

    Maritimer Well-Known Member R2R Supporter R2R Excellence Award Reef Squad Leader CTARS Member Build Thread Contributor

    Joined:
    Nov 21, 2015
    Messages:
    4,016
    Likes Received:
    5,844
    Location:
    SouthWestern Connecticut
    Those look rather like (though not identical to) the egg cases of a small local whelk called an oyster drill. Whelks are predatory snails, so often not terribly welcome in our little reefs.

    ~Bruce
     
    crabs_mcjones likes this.
  3. john pocock

    john pocock Member

    Joined:
    Jan 12, 2017
    Messages:
    7
    Likes Received:
    0
    Aren’t snails good for the tank? Should I remove this before they turn into snails?
     
  4. crabs_mcjones

    crabs_mcjones I'm shiny! R2R Supporter R2R Excellence Award Build Thread Contributor

    Joined:
    Jul 24, 2017
    Messages:
    906
    Likes Received:
    1,079
    Location:
    Wisconsin
    Dicathais orbita eggs possibly? If so they're predatory as Bruce said. I'd get them out just to be safe.
     
    Maritimer likes this.
  5. Maritimer

    Maritimer Well-Known Member R2R Supporter R2R Excellence Award Reef Squad Leader CTARS Member Build Thread Contributor

    Joined:
    Nov 21, 2015
    Messages:
    4,016
    Likes Received:
    5,844
    Location:
    SouthWestern Connecticut
    "Snails" is a pretty big class of critters - kind of like "mammals".

    Bats are mammals - good to have around, as they eat mosquitoes. Sheep are mammals - good to have around, as they keep your lawn trimmed (and keep you warm in the winter, but we digress...) It does not hold true that you want a tiger - although also a mammal - in your neighborhood.

    The snails we pay for in our cleanup crew eat algae, detritus, leftover fish-food. Some of these whelks ... eat the cleanup crew. (As do creatures like tulip snails, pyramidellids and Babylonia . . . )

    ~Bruce

    P.S. & BTW, I think Crabs McJones may have nailed this ID, there . . .
     
    crabs_mcjones likes this.

Share This Page

Loading...