New Lifes

[LiveRock]

Hi

recently, some white sponge-like growth appeared in my tank.

They looked like tiny sea fans with fingers. They growing from my life rocks and porous surfaces.

Another creature that suddently appear is a snail-like animal that comes out at night. It is whitiesh in color, has 2 feeders (antenna?) and eats my nusiance brown algae. If I shine a light on its top, it appears neon blue, much like topaz stones from Australia and New Zealand.

Anyone know what are these new comers?

Thanks!

[Achilles Tang]

Would help if you could take a pix so we can help ID them for you!

Is your snail-like creature without a shell? Then it's probably a nudibranch or a stomatella (shell-less snail).

The tiny seafan with fingers are probably a species of featherduster worms.

[clowntrigger]

At, what about small white like bettle clawing on the surface of the glass, what are those? I also see small worm climbing up the glass, any guess what are those? Me will try taking a pictures tonight.

[hongqixian]

Stomatella varia is an excellent algae eater and you are lucky if you have them! The white beetly things might be amphipods or copepods. Check out http://reefs.org/hhfaq .

[LiveRock]

The site http://reefs.org/hhfaq is very good.

Yes, it is a stomatella, judging by the picture.

I am glad it appeared (from nowhere) as it is eating up my nusiance algae.

I also found out I have Chiton:

Still cannot find out what is the white bushy fingers like stuff.... :-(

[hongqixian]

I think it is probably a sponge like you said or a bryozoan if it is stuck to the glass. Anyway, shouldn't be a problem.