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Please identify this creature for me white ball in live rock

Is this invasive, bad for my tank?

  • What is it?

    Votes: 0 0.0%
  • It moves very very slow if it needs to.

    Votes: 0 0.0%

  • Total voters
    0

Jonaripri

Registered Member
Can someone please tell me what this is. Appeared in my tank beneath dark area of live rock. 90 gal saltwater tank with only foxface, yellow tang, two breading pair clowns, sea urchin, cardinal, some red leg crab -shelled , coco worm (feather duster). This picture is magnified....Tank ball like spike.jpg
 

tanker

Josh Holloway--Be mine!!!
It is a type of sponge. Safe.
 

Jonaripri

Registered Member
Can someone please tell me what this is. Appeared in my tank beneath dark area of live rock. 90 gal saltwater tank with only foxface, yellow tang, two breading pair clowns, sea urchin, cardinal, some red leg crab -shelled , coco worm (feather duster). This picture is magnified....View attachment 215837
....Yes...thank you all for your response, I was able to find out it is a Pineapple Sponge.
 
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