What is this?

[EeyoreIsMySpiritAnimal]

Ok, the only things I have taken out of the tank are bristle worms, and those worm things. Both of which I will continue to do.

Everything else I will leave alone, unless I identify a harmful species.

I also have a ton of aptasia on one rock. Is there anything I can do to get rid of it? When every I try to you'll it out with tweezers, it retracts back into the rock.

Leave the bristleworms alone. Best cuc you can have.

 

[EeyoreIsMySpiritAnimal]

I also have a ton of aptasia on one rock. Is there anything I can do to get rid of it? When every I try to you'll it out with tweezers, it retracts back into the rock.

Go to the main hitchhiker forum (hit the link above your post title) and read the sticky threads about aiptasia... Lots of great info already written up for ya!