Excited or worried? What is this?

So I chimed in on trying to ID pests for other people. I thought I was being helpful, turns out karma thought I was being arrogant and decided to give me this random issue of my own.
One of my duncan colony's fell off its perch the other day and when picking it up I noticed these growing on the back side.
Let me provide what I know:
- Growing in highly shaded area. Low/moderate flow.
- No spreading to any other areas.
- Feel slightly soft to the touch. Almost egg-sac like.
- Those bright oranges spots you see in the pics have nothing to do with the lights. They are indeed that bright under any lighting or any angle.

I am at this point likely going to tweezer them off and follow the cleansing protocol one would normally do for bubble algae. That is unless anyone has solid information otherwise.
My other choice was to name them some exotic name and then sell them for $500 apiece. Could always go that route I guess....
All joking aside - any guesses? Thanks everyone!

 

I sent it to some friends and two suggested sea squirts.

 

I agree with xroads friends. I think they're sea squirts (tunicates). Some people really wish they could get some to grow as they can be ornate, but they are something that only grows under exact conditions and you can't really force to grow.

 

So there you go, probably not worth selling for $500, but cool none the less.

 

I have one of these red ones growing inside of some rock hollows unfortunately only viewable through a half an inch hole in a rock. Im hoping it spreads to the outside rockface but its been holding where its at for over a year.

 

That's encouraging. Thank you for the responses. I will keep an eye on them and report back every so often. If they appear to spread rapidly or well I will certainly share some and see if we can get them into the community.
Now it's time to do some reading on tunicates I guess.....

 

Its kinda hard to tell from the photo, I can sort of see an opening in the tops. Tunicates I believe will always have 2 openings separated by a distance. They use microscopic hairs to propel water through them and capture nutrients so there has to be a pathway for flow. If you notice two holes on them I'd say that confirms it. One might be a lot smaller or barely visible though compared to the other.

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The Sea Squirts and Tunicates (Class Ascidacea)

 

Anyone know what this is? It appeared on my glass over night last night.

 

What kind of snails do you have? Could be snail eggs.

 

Definitely snail eggs.

 

Agreed. Depending upon your fish makeup they won't last long. I have those and consider them appetizers for my wrasses....

 

Ok thats a good thing. Nothing wrong with free clean up crew. I could always use more to clean my glass. I currently only have 2 fish so these might make it.