can anyone identify these beasties?

[porknbean]

Can anyone tell me what this is?. they are growing on the inside of my refugium.They look like they are all connected by a thin line. They are about 1/32-1/16 inch. Are they good or bad? They seem to be growing larger and in population. I also have this small 1/2 inch hitchhiker (clam??) Can anyone identify it?

 

[spanko]

I don't know but tagging along to see what develops here.

 

[bang guy]

Colonial Hydroids.
The clam looks at first glance to be a very young Tuyrkey-Wing Clam. Take another pic of it next year...

 

[spanko]

Thanx for coming in Guy. So they are hydroids but I was thrown off by the runner, is it part of the critter or something else that they have taken a shine to?

 

[bang guy]

It's part of the colony.
My recomendation is using a turkey baster and squirt boiling water on them. If you can take the rock out of the water a blowtorch is even more effective. These are NOT a good thing IMO.

 

[spanko]

Have a read here Porkbean
http://www.reefcentral.com/forums/showthread.php?t=1972948

 

[porknbean]

i was also thinking hydroids but wasnt sure. they are only in my refugium so should i worry about wiping them out as soon as possible or see if they spread?