Parasite

[Christianpozo05]

My fellow refers Im brand new to this beautiful hobby. I don’t even consider myself an amateur, that’s how new I am to this hobby. Can anyone tell me what this is? And and recommendations on how to get rid of it? I would greatly appreciate it.

 

[jabberwock]

following

 

[Lemons]

First picture looks like pieces of norri?

Second looks like a fan worm, harmless filter feeder