Aiptasia anemone
 

It's too bad these things are evil, they are pretty cool looking when given ideal growing conditions.
With that said, this guy has found himself a place that I can't easily reach with a syringe but is the first thing I see when i look in my tank:twised:

http://img.photobucket.com/albums/v2...l/enhanced.jpg

I agree. The first time I saw one in my tank I was actually excited until I read about it. I had a few in my quarantine tank. I fed them to see how many would actually grow. I was planning on getting a CBB fish and wanted a good food soarce for him while in my quarantine tank. Well the Aiptasia grow to cover all the live rock, the gravel, and even started growing on the tank sides. I got my CBB, and it didn't eat any of them.:rolleyes: I got a few peppermint shrimp and there are only a few left after only a few days. The picture below was taken before the Aiptasia really got out of hand.

http://i91.photobucket.com/albums/k3...524_edited.jpg

This anemone is probably a bit too big for peppermint shrimp and I have to treat the tank for red bugs before I can put any shrimp in.

There will be at least half a dozen peppermints added as soon as i can though so they can deal with all the babies that pop up :rolleyes:

When they get big, they remind me of something from a B-grade horror film. Like something back from the 40s, and 50s.

I have had very large Aiptasia which the peppermin shrimp had no problem eating.

Apt
 

There was a local pet store that was selling them as glass anenomes.I guess some people bought them.

I had several large pieces of LR I used in my fowlr specifically for feeding a CBB but within a week it had eaten them all & eventually died. I thought it would survive because it was eating mysis & bloodworms, but nope.