Help on this

[sakura]

I not sure what is this but it is growing on my live rock. If it harmful'?

[CFOh]

I not sure what is this but it is growing on my live rock. If it harmful'?

Looks like baby tube worm or coco worm.. is it hard shell? pic not clear... anyway, both are filter feeder... reef safe...

Some info from wetwebmedia below:

http://www.wetwebmedia.com/feather.htm

Cheers..

[raydiative]

looks like aptisia to me..

[CFOh]

looks like aptisia to me..

Most likely not Aiptasia.. seldom see Aiptasia growing team together so close like showing in pic... and also can spot some of them got tube in between... anyway, clearer pic will help... Cheers

[Terryz_]

Hydractinia sp... A species of Hydroid..

[CFOh]

Hydractinia sp... A species of Hydroid..

learning newthings today.. Ya, looks more like Hydroid.. Thanks Terry for sharing...

Sakura,

Some info share here.. They posses sting capability.. not so safe....

http://reefkeeping.com/issues/2004-10/sp/feature/index.php

Cheers..

[Terryz_]

learning newthings today.. Ya, looks more like Hydroid.. Thanks Terry for sharing...

Sakura,

Some info share here.. They posses sting capability.. not so safe....

http://reefkeeping.com/issues/2004-10/sp/feature/index.php

Cheers..

No problem...

[sakura]

Hi Guy first thanks a lot. Yes it look like cooco worm with a hard tube. It not multiplying at the moment but I have no idea where it comes from. Anyway to remove this because all my rock are glue together.

[Terryz_]

Hi Guy first thanks a lot. Yes it look like cooco worm with a hard tube. It not multiplying at the moment but I have no idea where it comes from. Anyway to remove this because all my rock are glue together.

I just take a toothbrush and scrub... Dunno if they will reproduce if the bits and pieces are attached to othe rocks...