The weird stuff in my tank

[avilamillar]

I'd take it out. It's pretty but it can make you very sad when you have it everywhere.

I have those Collonistas too. There's always grown ones and gazillions of babies. I never get gazillions of grown ones. Not sure what happens to them in between.

Too bad they wont grow to a nice size. Im sure they help to clean the tank anyways. They're tiny but numerous.

No idea what that polyp coral is. Can you get some more photos of it? More close ups and a brief description of it's location in the tank, etc.

I am not 100% sure it is bryopsis... but I'm looking on my phone and probably missing details. Check some comparisons with different types of feather caulerpa, and see if anything eats it before committing to a full on war against bryopsis. Pruning is good, but make sure not to let fragments loose that could spread if it is an evasive algae like bryopsis. Anything you can remove, dip with H2O2. If you do a search on MAAST you will find several threads on the subject

Go ahead a bookmark this link. It will come in hand time and time again.
www.chucksaddiction.com/hitchhikers.html

I'll try to post some more pics of the polyp tonight.

I did some comparisons and I think it is bryopsis. I think it's called Bryopsis Minor It looks like this one:

http://www.starfish.ch/photos/plants...sis-minor2.jpg

http://www.starfish.ch/photos/plants...sis-minor1.jpg

For now it's just located on a single spot on the glass but thanks for the tip of H2O2 and the link. Appreciate it.

The algae looks like Bryopsis. As a precaution, I would carefully remove it.

I think I'll do that. just as a precaution

Thanks