What is this lifeform?

[Noober]

:bigsmile:what are these little tenticles with the white heads on them, they were not very many of them at first but now they have shown up in a couple more spots, are they good or bad. They only come out at night.
http://i66.photobucket.com/albums/h254/mpthreer/unknown.jpg

[Kristy]

That looks familiar. Do they have a small orange foot, clear tentacles with white balls on the end and react sort of like a mushroom would? Read this thread and see if we are dealing with the same problem.

http://www.maast.org/forums/showthread.php?p=619418#post619418

If so, we were able to control them fairly easily by treating them like aptasia. There was no clear convincing evidence that these are a pest, but they spread SO aggressively that I wanted them gone before they nuked all our corals.

Good luck and ask if you have more questions!

[ErikH]

That looks crazy!

[phrog]

Is that not a stomatella?

[phrog]

Nvm, looking at wrong part of huge picture.

[MeteorFlower]

That looks a lot like a ball corallimorph to me. They're related to anemones. As for good or bad, I'm not sure... I have a few in my refugium, and I like them a lot :) They've never reproduced quickly enough to make me worry, nor have they spread to my display, so I like to leave 'em. But you should see what other people say.... I might be wrong!

[MeteorFlower]

Oops, looks like someone already said that... sorry!