can any tell me what this is?????

[laithiyad]

I have a sand polyp and someting is growing in the middle of it.
it opens and closes .is it good or bad for the tank? THANKS!

 

[fenrir]

That looks like a barnacle to me. I have a couplein my tank and have yet to cause any harm, of course I don't have any corals yet. :happyfish

 

[laithiyad]

i thought barnicals were hard and didn't move.
this thing is soft and closes

 

[fenrir]

Barnacles are hard, if it is soft im not sure what it is, sorry. Hopefully someone can tell you what it is, im interested now as well.

 

[timt6379]

live barnicles and dead ones r diffrent i have some dead ones that will pose as homes for small fish, but it looks like a barnicle 2 me.

 

[reefreak29]

its a barnical

 

[ophiura]

That is a tunicate (aka sea squirt).
A harmless filter feeder. Pretty cool

 

[reefreak29]

Originally Posted by ophiura
That is a tunicate (aka sea squirt).
A harmless filter feeder. Pretty cool

um yah yah thats what it is ,what was i thinking dah