Thanks, I wanted to try the PPS Pro, I have a precise automated fert system working. Just using poor quality ferts. That said, I have adjusted the CO2, will that kill off the algea combined with Excel or do I need to mechanically remove all the current leaves with BBA?
I would mechanically remove all the current leaves that have BBA on them.
I have found that even if the algae dies off (i.e. with Excel spot treatment), the underlying tissue has been degraded to the point it is not worth saving.