Please Help me ID this creature!

carlosruga

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Hi

could you please help me ID the following creature ? I noticed 4 or 5 in the glass today! Can you tell me if it is bad or good for the aquarium? 305CACB7-A910-480D-BD43-7C165E27CA66.jpeg
 

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Hydroid. Can and may sting coral
Scrape off with knife or razor at base and discard
 
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HOW MUCH DOES A FISH’S FEEDING REQUIREMENTS AFFECT YOUR STOCKING DECISIONS?

  • A lot! - I avoid fish that require frequent or specialized feeding

    Votes: 12 29.3%
  • Quite a bit, but an automatic feeder can change my answer

    Votes: 6 14.6%
  • It depends on whether my nutrient export can handle it

    Votes: 6 14.6%
  • It depends on how badly I want the fish

    Votes: 10 24.4%
  • Not much. I’m willing to adjust my routine

    Votes: 9 22.0%
  • Not at all. Feeding demands don’t limit my stocking choices

    Votes: 7 17.1%
  • I usually learn about the demanding feeding schedule after buying the fish!

    Votes: 2 4.9%
  • I haven’t really considered this before

    Votes: 3 7.3%
  • Something else (see my comments in the thread)

    Votes: 1 2.4%
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