Refugium light and algae growth

[Calireefer92]

Hey reefers I just got a 150w ufo grow light for the refugium. I have it set to go on at 9:30 pm and off at 7:30am my tank light go on at 11am and off at 9pm with the refugium light cause a lot of algae outbreaks? Tank has been up for 5 months

 

[lpsouth1978]

The idea of the fuge light is to grow algae in the refugium so that it can out compete nuisance algae in the tank. Also to help reduce pH swings in the system when run on a reverse lighting cycle. Having a strong light over the fuge with Macro algae growing should reduce or eliminate most algae outbreaks in the DT, once the fuge is established.

Keep in mind, you may need to adjust your fuge light schedule to match your tanks parameters and needs. If the Macro algae is reducing P04 and N03 too much, reduce the photoperiod of the fuge. If it is not reducing enough, increase photoperiod.

 

[Calireefer92]

The idea of the fuge light is to grow algae in the refugium so that it can out compete nuisance algae in the tank. Also to help reduce pH swings in the system when run on a reverse lighting cycle. Having a strong light over the fuge with Macro algae growing should reduce or eliminate most algae outbreaks in the DT, once the fuge is established.

Keep in mind, you may need to adjust your fuge light schedule to match your tanks parameters and needs. If the Macro algae is reducing P04 and N03 too much, reduce the photoperiod of the fuge. If it is not reducing enough, increase photoperiod.

How high should my light be from the water surface?

 

[Super Fly]

How high should my light be from the water surface?

I have my UFO light appx 5"-6" from water for caulerpa

 

[Vines_FLReef]

Hey reefers I just got a 150w ufo grow light for the refugium. I have it set to go on at 9:30 pm and off at 7:30am my tank light go on at 11am and off at 9pm with the refugium light cause a lot of algae outbreaks? Tank has been up for 5 months

I have the exact same light and experiencing the same issue. My chaeto grows like crazy but am getting green and brown algae in my DT now when I never had it before I added the UFO light. Previously was running for about 10 - 12 hours but have cut back to 8 for now. I think I need to cut down the time on the UFO even more and supplement with a smaller white/blue light for additional time.