ID on these tiny things

[Veljko]

These are very very small, to the naked eye barely visible as just blacks/dark brown dots. Once zoomed in you can see the "tentacles" in the flow.

 

[ColorMeGone]

Those look to be aiptasia. You need to eliminate them or they will be everywhere

 

[Veljko]

Those look to be aiptasia. You need to eliminate them or they will be everywhere

Hmmm... I am a beginner, but I wouldn't think those are aiptasia.

 

[BryanM]

Yeah, that doesn't look like aiptasia to me either..

But it doesn't look good, if it is a nem then the normal ways of ridding yourself of them will work (F-Aiptasia, Joes Juice, etc).

 

[Privateye]

Do they retract if you touch them? If so, I'm not ready to rule-out apitasia yet. There are many species. If this 30 year old memory is correct, I recall poking anemones that look like that in the Caribbean. I had a blast watching them disappear when I touched them.

Do the tentacles look to have any frills on them? That would make me lean away from aiptasia.

 

[mmorrison55]

Unless you like the look of them, treat them like aiptasia and start eradicating them.

 

[EnterName]

There are one or two of these things retracting extremely fast in the video. Aiptasia can retract fast but this looks near instantaneous.

There also is no visible stem/neck and the tentacles have a uniform thickness which doesn't match an anemone either.

The video compression seems to be causing a lot of detail loss... Can you take a photo or two so it's possible to see the base these tentacles are retracting into?

I only see black spots but don't know if they are all sitting in holes in the rock or have some kind of shell or tube they retract into.