is this ok here? what exactly is it anyways?

[Reef Puffer]

Originally Posted by reefwars

Its a type of sponge its all over my tank, harmless perse but will smother smaller corals.

thanks. if it causes problems ill shut it down. until then i guess its ok?

as for the others and the "toadstool" i assume your talking about the frag and not the sponge? heres the mother, i still think its a devils hand? but correct me if i am still wrong.