Cleaning dead algae from rocks after outbreak

[m3rcfh]

Hi guys
Been wondering if you use any specific method to clean dead algae from the rocks after an algae bloom war has been successfully won without tearing everything apart.

I just had a start of cyano outbreak combined with hair (or dino), film and bubble algae all at the same time. Took a shot with hydrogen peroxide and most of it was gone after the 14 days treatment period. Now I'm left with a big amount of white deposit which I believe to be dead algae sitting on my rocks. I can see it clouding the water when the fish swim fast by. I tried syphoning it, but it doesn't seem to work. Would the best option be using a brush? There is some new hair algae blooming at the spots where most algae was during the outbreak, I'm assuming it's because they have plenty of nutrients from the dead algae...

Thanks y'all

 

[dirtycontour]

I zip tie a toothbrush to a siphon hose. Works well.