Everyone always referS to the major source of brush algae as fluctuating co2 levels and or lack of circulation. But I have a question though. Isn't the process of turning off the co2 at night along with aeration hence raising the ph at night to start the co2 cycle again a fluctuation in itself?
Even though I start co2 2 hours before the lights come one it takes almost all day for my drop checker to turn light green.
I have a high light tank with sump setup so I degass the co2 at night quite efficiently. Plus I run and airstone in the sump when the lights are off
I am now running into brush algae and I want to control it before it gets out of hand