1. Feb 10, 2013 #1
   Toledo Iowa

   jstngates Experienced Reefkeeper

   1,794

   Toledo Iowa

   Ratings:

   +40 / 1 / -0

   Looks like a sponge its grey to black and long and spreads along the rock. Its gotten me before in my other tanks. Can't really get a pic because its on back side of the rock. Anyone know what it is?

    
2. Feb 10, 2013 #2
   Coralville, IA

   erayk1 Well-Known ReefKeeper Board of Directors Leadership Team GIRS Member

   981

   Coralville, IA

   Ratings:

   +35 / 0 / -0

   I think it's a sponge with bristle worm skeletons in it. I had a similar situation and those are my thoughts. Unless anyone else can id it as something else.

    
3. Feb 10, 2013 #3
   Toledo Iowa

   jstngates Experienced Reefkeeper

   1,794

   Toledo Iowa

   Ratings:

   +40 / 1 / -0

   Can a sponge sting by itself?

    
4. Feb 10, 2013 #4
   

   daalbers Well-Known ReefKeeper

   562

   Ratings:

   +24 / 3 / -0

   no they can't

    

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