I have the BRS 6 stage deluxe RO/DI unit. I’ve cleaned the tank once since changing live rock. With no live stock, there’s not a lot to clean.Battling a small hair algae war right now my method is manual removal and weekly water changes also running more carbon , Are you making your own rodi ? Might wana start there for the source of it
Do you scrub off the rock in the tank? I have a brush, just afraid it will spread doing it in the tank.