What is this? Pic

[cenzo]

This little thing seems to be growing every day good or bad?

http://www.webcreations5.com/fish/whatisit.jpg

[Acoustic]

It's an aiptasia.

[nano-reefer madness]

I'm not sure if its an Aptasia sp. or not but i have had three of them in my 12 g for over a year now. They have an interesting habbit of "swimming" around the tank periodicaly. so far they havent reproduced more than most sp of anemone and seem harmless. i say keep it. there kinda cool

[Bucket o Chum]

It looks like some kind of polyp coral of LPS coral not an anemone.

[fourhand2]

Looks like some cool red algae to me. It doesn't have the perfect radial symmetry that's usually associated with anemones (or coral polyps, for that matter).

-Will

[Bucket o Chum]

If it was algae then why does it have feeding tentacles? I'm a kid and I know this stuff. Foolish bipeds! What has our world come to? Punk Rocker and boy bands oh the insanity!:

[fourhand2]

I see no feeding tentacles. It's not a totally clear picture anyhow. I can't really make out too much at all really..

-Will

[cenzo]

It gets bigger when I turn the lights on if that helps?

[sjpresley]

Can you tell us anything about?

 

What does it feel like (No, I don't mean happy or sad, I mean what is it's texture)?

 

Have you offered it food?

 

Did it take any?

 

What is it's sign?

 

Does it move?

 

Does it appear to have a skeleton?

 

Does it emerge from a hole in the rock?

 

Can you take a pic of it with the lights off?

 

My guess at this point would be a colonial hydroid or something similar to a rock (flower) anemone. It is really hard to tell the animals structure from the pic.