I've been dealing with some slight cyano algae. i took my vortechs out of night mode hoping that will help. It only really started when i added my radions and they started going into night mode, at least as far as i can tell. i've used my julian's thing to blow some of it off, and a soft bristle tooth brush to take care of it some. there are still a couple collector colonies that have some, so is there anything else i could try? maybe a dip in chemi clean or something?