SPONGE?????

[evansnina]

Is this a sponge? Ive seen the white and a friend of mine has the blue but ive never seen the purple, it has a lavender color to it, very pretty, i would HATE to have to remove it if it was harmful to my tank !!!!!

[tazzy695]

cool looking looks like a sponge
they come in many different colors and shapes and styles keep an eye on it and how fast it grows

might be aggressive and harm other corals might not

[thefishgirl]

Not sure if it's accurate or not, but I've referred to these as sea squirts -- I have some in my tank. They are pretty, and as far as I know, harmless.