Hitchhiker ID Please

PowChickaPowPow

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Hi can someone tell me what this white thing is under my acan? The acan shrinked when I scraped the glass nearby and then I noticed this for the first time. Should I remove or let it be? Thanks

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Crabs McJones

Regional Reef Manager (AKA Revhtree's Boss)
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Pineapple Sponges. Harmless filter feeders
 

DO YOU THINK TECHNOLOGICAL ADVANCEMENTS ARE MORE HELPFUL OR HURTFUL TO REEFING?

  • More helpful.

    Votes: 15 33.3%
  • More hurtful.

    Votes: 3 6.7%
  • I think it depends mostly on the technology.

    Votes: 20 44.4%
  • I think it dependsmostly on the reefer behind the technology.

    Votes: 14 31.1%
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