Check out this critter ... Hydroid?

[itZme]

I got some video of these things that are in my fuge and I never saw one actually free-swimming until tonight. I uploaded it to youtube so I don't know how bad it is compressed. Hope you can still see the thing.

Anyone have ideas? I have heard that hydroids can swim around on their own and are a type of jellyfish.

At first I thought these were aiptasia. Don't know which is worse.

http://www.youtube.com/watch?v=aedCOPi9lok

-- Kevin

 

[Old Crusty]

WOW What The Heck!! I have never saw anything like that . FREAKY
will be watching to see if anyone ID's These Critters..

 

[serpentman]

I did some digging (too much time on my hands). I may be wrong but it looks to be Boloceroides mcmurrichi , aka the swimming anemone. Sounds like a free swimming aiptasia-like species. However, the good news is from what I read, they colonize sea grass which is usually found in lower current areas (or refugiums) so I doubt they would do too well in your main tank. However, I would pluck 'em if possible.


http://www.poppe-images.com/images/...gory=anemones&species=Boloceroides mcmurrichi

http://www.environment.gov.au/cgi-bin/species-bank/sbank-treatment.pl?id=81302