Radion G4 -- What is your intensity at?

[Rakie]

Gotta say, after calibration I'm blown away by the G4. My only caveat is I greatly underestimated how much stronger they are than G3's..

At 55% I'm burning corals, had to lower overall to 50% of the WWC colors program and it still may be a bit much. I'm full SPS by the way, 24x24x18.

Saying I'm surprised at how little wattage is being used is putting it very mildly... My photoperiod is a tad long for sure, because I'm usually gone all day.

So where do you keep your Radion G4

 

[watdachuck]

24" X 24" X 66" - Radiant Color program at 55%.

 

[Ashish Patel]

I Currently run them at 70% intensity...I get around 200-250 PAR on most of my SPS and 100-200 on everything else.
When I started my tank in april i had them at 100% on all channel since my PAR meter was giving my SPS PAR of 250-350 range (as recommended). Anyways, this PAR level was overkill in a new system with low nutrients so chasing PAR went bad for me. I have change it 3 times in 9 months and had many different settings but found it impossible to increase intensity when the entire day has many different points of change. So I found myself trying to adjust intensity at different times per day and the entire day would be ruined. Therefore for the past 4 months I just switched it to a easy to adjust setting as can be seen below. I only enjoy my tank in the evenings so I still get to see the corals and the setting is easy to manipulate if needed.

 

[Robink]

I run mine at 60% on the coral lab SPS PHX14 which maxes out the lights to 42%. Not sure on the par but sps and lps all doing well, good growth and color.

 

[Curlew_Coral]

15%. 6x2x1. With racks on 2” pipe cupeling

LPS mode no whites and dragged out ramp time 15hour setting

Full Zoa only growout

Gen4xr15p

Im upgrading to 8x2x1 With more xr15 and dualt5 down the center and hang xr15 VS rms to get higher up and use more % setting

 

[Ashish Patel]

15%. 6x2x1. With racks on 2” pipe cupeling

LPS mode no whites and dragged out ramp time 15hour setting

Full Zoa only growout

Gen4xr15p

Im upgrading to 8x2x1 With more xr15 and dualt5 down the center and hang xr15 VS rms to get higher up and use more % setting

Interesting Never seen someone run them so low.. Have you found 15% to just be more ideal for your application? It is a shallow tank and mounted fairly close so I could imagine your getting them good PAR and photoperiod

 

[John3]

I’m running at 70% and my schedule is close to the AB+ schedule. I’m mostly growing lps and easy sps like montipora. I have some lps high up that is growing really well like acans, blastos, zoas. I thought this might be too much light but I’ve just let the corals tell me. I will note that I did run the acclimation schedule so there wasn’t a huge jump in light overnight.

 

[HWDylan]

I have 2 Gen4Pros over a 4ft tank. I run them at 45% max and I use the AB+ with some slight modifications.

 

[Garbonzo]

phx14 @ 55% 14" height

 

[ncaldwell]

4 over a 5ft tank 12 inches over the water. Max is 70% but it only climbs there and goes back down to 55% over 5 hours

 

[nashorn]

I'm currently running 3 xr30G3 over my tank. Ramp up and down for 12 hrs with 3-4 hrs at 100% mid day.
About to switch out to 2 xr15G4 pro with 4- 39w t5. I would like to add 2 more once I can get the bracket but maybe that's too much?
Is the G4 pro that much brighter? Maybe 100% will be too high.
I currently get great color in my sps.

 

[stevem650]

I’m using 3 xr30 g4 pros over my reefer 750. Using the coral labs sps AB+ 50% intensity. Par reads 280 7” BWL and 120 par on the sand