What is GROWING OFF my Live Rock

[puffedupseagull]

Hello everyone,
Just become new to the reef central system, and find everything here so helpfull. That is why im asking the following question.

Could some one please help me to identify the following growths on the pictures below. Would be a great help if i new what i was dealing with. Thanks guys and girls hope you can help.

This first pic shows a small gel like thing growing, it has a slight blue to purple tinge to it.

This 2nd pic shows three growths, the two that look similar seem to be turning towards the light more, as they are under a rock in a shaded area. the 3rd growth in that area is very similar to the one in the first picture, but seems to form different on the rock

 

[Crimthann]

I'm going to guess some sort of sponge.. would need a better picture though.

 

[Aiwass]

Those look like feather duster worms to me. I have no idea what the species is, but they release plankton and will colonize your rock/glass etc... Not sure if they could ever become a nuisance, I've never had a problem w/ them.

 

[Poorcollegereef]

I dont know, but the thing on the left of the second photo looks like some sort of pest anemone... like a clear manjo. I think I see a oral disk... but the photo is inconclusive

 

[twinclan]

Wow, when I look at the second picture it brings back my horrid days of the coral eating slugs I had. Are you sure they are actually growing out of the rock or could they be moving?

 

[Phillips]

Looks like it could be a Corallimorpharian, maybe Pseudocorynactis. I have those all over my tank on the undersides of the LR.

 

[sgolden]

if they have a skeleton, pseudocorynactis, but they appear to be more of a bryzoan or cluster of tunicates

 

[Phillips]

Pseudocorynactis doesn't have a skeleton. It's related to Rhodactis, Ricordea, Discosoma, etc.

 

[Meisen]

It is hard to tell b/c the pic is blurry but it almost looks like a bleached rhodactis or ricordea to me too.