Red/orange algae growing on rocks

[-Nana-]

I don't know what is going on with my tank. The first picture is from January. The second is today (4-6-2024). About 6 weeks ago I started getting a lot of algae. Hair algae, I think. I spent a lot of time picking it off the rocks but it just kept getting worse. A couple of weeks ago I started getting red/orange algae and all the hair algae started turning reddish brown.
I checked Phosphate, Nitrate, PH, Phosphorus, Alkalinity, Calcium, Ammonia. Numbers are good. I do a 20% water change every 7-12 days. Is this something that will go away in time or do I need to dose it with something?

 

[lapin]

The third picture looks like cyano bacteria. Try to increase the flow and suck it off with a turkey baster.