Good afternoon all. I recently set up a JBJ 28g nano in my cube at work and after some time running, this started showing up...and spreading. I need help to identify what it is and if I need to use the weed-wacker on it, get rid of it completely, or let it flourish? I've attached a pic. I already know about the aptasia in the foreground. Between my peppermint shrimp soldier and myself armed with a syringe loaded with lemon juice, it's slowly going away.
Thanks!!
Thanks!!

