Light Schedule?

Kasey Grohowski · May 22, 2019

Just wondering what a good light schedule is. Would 2 hour sunrise (blue) 6 hours daylight (white) 2 hours sunset (blue) be a good schedule?

Ron Reefman · May 23, 2019

The sunrise and sunset of 2 hours each is OK. The midday of 6 hours is probably OK assuming the sunrise and sunset are not ramping up and down but just stable? Also keep the blues on during the 6 hour midday. If you have to dial back the intensity because you now add blue to the midday, dial back the white more than the blue.

The zooxanthellae that does photosynthesis inside our corals use far more blue spectrum to do this than any other. Terrestrial plants and most algae (plants) use red/yellow spectrum for photosynthesis, so less white and more blue is good for the corals and harder on algae.

Kasey Grohowski · May 23, 2019

Ron Reefman said:
The sunrise and sunset of 2 hours each is OK. The midday of 6 hours is probably OK assuming the sunrise and sunset are not ramping up and down but just stable? Also keep the blues on during the 6 hour midday. If you have to dial back the intensity because you now add blue to the midday, dial back the white more than the blue.

The zooxanthellae that does photosynthesis inside our corals use far more blue spectrum to do this than any other. Terrestrial plants and most algae (plants) use red/yellow spectrum for photosynthesis, so less white and more blue is good for the corals and harder on algae.

The lights have a 90 minute ramp for each light I believe.

Kasey Grohowski · May 24, 2019

Ron Reefman said:
The sunrise and sunset of 2 hours each is OK. The midday of 6 hours is probably OK assuming the sunrise and sunset are not ramping up and down but just stable? Also keep the blues on during the 6 hour midday. If you have to dial back the intensity because you now add blue to the midday, dial back the white more than the blue.

The zooxanthellae that does photosynthesis inside our corals use far more blue spectrum to do this than any other. Terrestrial plants and most algae (plants) use red/yellow spectrum for photosynthesis, so less white and more blue is good for the corals and harder on algae.

Also the daylight is 90% blue and 50% whites.