Aiptasia or Polyps?

[htown1331]

Hi all,

My 55 gal tank has been up and running for 25 days now. The cycle is pretty much complete and the live rock is coming to life! These little guys popped up today and I can't tell if they are aiptasia or yellow Polyps. They are very small (2-3mm) and located on a piece of live rock in a low light/low flow area in the bottom corner of the tank. I recently put a peppermint shrimp in there to handle other aiptasia that have popped up (gone in 3 days!), but he hasn't touched these. Thoughts?

 

[saltyfilmfolks]

I think its a type of hydroid. Chip of the piece of rock if you can, you can try putty too.

 

[AcroNem]

I'm thinking hydroids.

 

[AcroNem]

Posted at the same time.

 

[jsker]

I am going with aiptasia. Aiptasia grown pretty quick, ployps like any other coral will tank a bit to grow

 

[BrunoSnow]

Is not aptasia.
Colonial hydroids ot something else Imo...
Look here

http://cifonauta.cebimar.usp.br/photo/2533/