Originally Posted by Keysman
It's on a 17g tank anyone know
Wow 100 Watts on LED
lighting on a 17 gallon tank is realy pushing a lot of light on the tank.
Normaly I advise a good starting point for light cycling is turning on the atinics(blues lights) then 2 hours later turn on the white lights, then 10 hours later turn off the withe lights, and finaly two hours later turn off the atinics. This give you basicly 14 hours of atinics and 10 hours with them both on, and 10 hours of darkness.
But with the lights as bright as I suspect your are going to be you might have to reduce the on cycles considerably. I never reccomend more less than 10 hours of total light since photosynthesis starts slowly and bulds up over time.