Aiptasia or filter feeder?

[rav3n]

I'm wondering if these little guys are aiptasia or a filter feeder. I noticed them springing up in all different random places around the tank, pretty suddenly. They will retract instantly of disturbed.

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[Optionman]

Doesn't look like aiptasia


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[mikem101]

I would agree doesn't look like aiptasia to me either not to sure what it is quite yet. Doesn't look like a feather duster either!


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[Breadman03]

Hydroid, I believe.

 

[gogo7]

i'd say it's an immature sabellid...or one of them featherdusters that looks like it... feed it detritus, use a turkey baster to make your water a little 'dirty' and make sure it eats some of that once or twice a day. looks like you've got others at :36, :47 and :03... the aiptasia is a tiny one at :38 in the gif