What is this?

[corrosionjerry]

Originally Posted by chris121277

Sounds like bubble algae

http://www.saltcorner.com/AquariumLi...php?GroupID=84

Yes... TY / looking at the pictures I would say that they look like Valonia macrophysa / there are only few ... should I remove them and what is causing these to apear all of a sudden?

Thanks

[MKLKT]

If you remove them just try to scrape underneath so they don't pop as that'll spread it. Live rock can have hitchhiking macro, it's common and normal. If anything the barren tanks people run are the oddities.

[corrosionjerry]

Originally Posted by MKLKT

If you remove them just try to scrape underneath so they don't pop as that'll spread it. Live rock can have hitchhiking macro, it's common and normal. If anything the barren tanks people run are the oddities.

Well I removed them... they were actually quite easy to remove.. however I did manage to pop one .... hopefully my skimmer will be effective in cleaning up the spores... I will watch for these carefully and remove as I see them / I believe they must of come in with live rock like you suggest as I recently put in a piece with some coral that I purchase recently.... funny thing is I never had any problems with any nuisance critters till I through that rock in with the rest of my live rock work... I noticed a couple of apista anemone that I had to exterminate that apeared on that same rock...