I have not done the scrub yet and am all ears (or eyes lol) to anything that will help.glad you took the action for sure, at least a good physical chop in the way of scrubbing is a forced mass remover...this makes preventative steps have to work less since algae are self perpetuating outside of tank parameters in many ways...they can feed in clean water as resident bacteria make food for them, and they also trap their own detritus in fronds for on site feed and degredation, this explains why so many tanks get algae issues even with params well done beforehand.
the scrub isn't so bad if you could use peroxide afterwards...not on the bulk algae, but on the clean or scrubbed spot as a cell burner...little tweak like that next time sure could help boost.
Should I get a spray bottle filled with peroxide and spray the rocks I plan to keep after scrubbing but before rinsing?