I got these in the beginning when I would re-start tanks back up and I don't recall them being harmful. I suppose you could just siphon them out with airline tubing.
I think those things are called hydroids or something like that. Like everyone else that responded, I too had these in the beginning and they just disappeared after a while. Don't think they're harmful.
[quote author=rleechb link=topic=3799.msg44409#msg44409 date=1212419628]
Yeah, those are little jellyfish (from what I remember). They'll go away eventually; I've had them in every new tank I've setup.
[/quote]
No they are the medusa stage of something that spawned in his tank, not jelly fish, just looks like them
[quote author=GreshamH link=topic=3799.msg44543#msg44543 date=1212511730]
[quote author=rleechb link=topic=3799.msg44409#msg44409 date=1212419628]
Yeah, those are little jellyfish (from what I remember). They'll go away eventually; I've had them in every new tank I've setup.
[/quote]
No they are the medusa stage of something that spawned in his tank, not jelly fish, just looks like them
[/quote]
Does rock spawn?? cause I didn't have anything but rock ..
Unless you bleached the rocks you have FAR more then just rocks I am afraid And yes, things in rock spawn, in fact, just about everything on this planet spawns