I have this little tube with tiny brown and white tentacles on my rock. If it's Apastasia is it ok to leave it since its not a reef tank ? Also what would happen is my puffer try's to eat it would it hurt him? Here is a pic but the quality is very bad
Feed your Filtration
Give it to Porc Chop he'll eat anything!!!!!
"This is my tank and these other fish just live in it"
^ Quoted from Porc Chop^