Light brown sacs on new LR?

puffer32

Active Member
Just got some green button polops today and the sacs are on same piece of rock. They are light brown and soft, about the size of a dime and round. I also found a baby bristle star on the rock also, very very tiny, could these sacs be nests of bristle stars? I don't want them to over run my tank, should i take them out? I am leeery even having the one in my tank, had an orange one once who ate my small fish
Any ideas without a pic, i would have to take the rock back out of the water to get a shot of the sacs since they don't face the glass.
 

elvictre

Member
It looks like a sponge to me. They are harmless filter feeders, and you might have some fish that will eat them.
Vic
 
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