One algae after another

[AdamMac21]

Ok, so I have a 15 gallon with a clownfish, royal gramma, cleaner shrimp and cuc. I was having bryopsis issues, got rid of that but now I have green slime algae and red cyano in full force. Lights run from 10:00 to 9:00. I feed the fish every other day and reef roids once, maybe twice a week. I do a 5 gallon water change every week. I read 0, probably false negatives, on nitrate phosphate etc. the only thing I can think is I added unfurled dry rock 2 years ago and maybe it’s still leaching stuff, but that was 2 years ago. I do use chemiclean and vibrant but it’s been relatively ineffective. Any help on how to get rid of this stuff would be appreciated!

 

[lapin]

Less white light if possible. More flow. Wipe it off with a paper towel. Siphon it off. Do fewer water changes. Cyano is a bacteria not an algae. It is the first to appear when using chemical means to get rid of algae. Something will need to grow to outcompete it for light and nutrients. That usually takes time.