Help ID pest.

Discussion in 'Coral' started by Bruce Spiegelman, Oct 21, 2016.

  1. IMG_2792.JPG IMG_2801.JPG Any ideas? It takes up all the places between the heads and create space, but doesn't cover the heads.
  2. Coral reefer

    Coral reefer President

    Looks like a sponge to me
  3. Vhuang168

    Vhuang168 Supporting Member

    Can you siphon any of it off? My zoas sometimes slime up and it collects debris.

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  4. No it doesn't siphon off. It is "spongy" but it's weird how it's kind of smooth and solid and doesn't cover the heads.
  5. Bmart

    Bmart Supporting Member

    Looks like a q-tip or pineapple sponge. I get them occasionally when I have a slight rise in phosphates. Haven't seen them actually grow around a polyp though.
  6. And these are growing around a dozen or so polyps. In between and around -- but not over.
  7. Julius Chen

    Julius Chen Supporting Member

    I may gave this same thing in my tank. New setup, 2 months old, changing water every 2 weeks.
  8. Coral reefer

    Coral reefer President

    Not harmful. Filter feeding on dissolved organics. Often show up in newer tanks

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