What Are These?

I have no idea what these are.I first noticed them about a week ago.I don't know if they are good or bad for my tank.Any help would be great.




I think its the early stages of some type of worm.I've checked out the worm threads and couldn't find anything.If any one could id these things, that would be great.Thanks.

T.Lites

 

bump

 

They look like Tunicates.

 

+1 on the tunicates - freebie filter feeders

 

Sweet.thanks.

 

if you look closely in the center of this rock there is something similar

 

Those pics are a bit of a challenge, could be tunicates, hydroids, or the small sponges. If you look very closely tunicates usually have to openings kind of like a clam, where they intake and expel water. They usually look pretty uniform, so yours may be sponge. Good sign that your tank is beginning to mature.

 

google: Ciona intestinalis

 

A sea squirt.Huh.After doing a google search,They can be bad or good or quite possibly the reason for the existence of mankind.I'm cool with what's in my tank.They're pretty small and there's not that many.Kind of keeping to themselves.Apparently things come and go in my tank. so I'm just gonna keep a close eye and make sure they don't get out of hand.

 

i have tons of those in my tank they get long if you dont hav much traffic on the rocks