Pls help to ID

[CrazyFish]

Hi Guys,

Anyone kown what is this small yellow thing on my button? it can move. Is it harmful or friendly ? Thanks

[blueheaven]

Those look like sponges

BTW, your picture is too big

Pls resize it

[CrazyFish]

Sorry, here is a smaller picture.

[cityofangels]

Looks like sponges to me.. You sure it's moving?

[CrazyFish]

Yap, it can move about.

[Alvin Tan]

sure can move anot..btw...use a pincer n pull it out will do...it is a kind of sponge..

[CrazyFish]

Sure it move, is it harmful ?

[Alvin Tan]

Sure it move, is it harmful ?

bro...intro some tangs...preferably yellow tangs...they love to eat sponge..

i dun tink it is harmful isn't it??

[CrazyFish]

Got a Blue Tang but he don't eat. This little ball is hairy and is like a yellow rambutan.