Dennis,
I was in search of some Radion Lighting information, and I was directed to this thread, which after many unproductive days at work, I read end to end! Fantastic read, great attention to detail.
What brought me here is I recently upgraded my 80 to a 120. The 80 ran "Old School", (2) 250wDE MH 14K Phoenix, 2 54w T5's, CaRx, Kalk Reactor, UV, Ozone, bare bottom, no refugium. I had great success. The 120 would be the same, only this time I would "Fix" what I didn't like about the set-up. After much research, and going back and forth, I decided to ditch the MH/T-5 in favor of the new Radion XR30-G4 Pro. So I picked up (3). I'm running them end to end over a 48x24x24 tank with a center brace. These are controlled by APEX, running the AB+ program. I started at 40% for (2) hrs/day then slowly worked my way up to 75% and (6) hrs/day. Corals were looking good. I saw the video about the diffusers, so I pick them up. No changes were made to the lighting schedule to compensate for the reduced output that was claimed to be 15-20%. In the weeks following installation, I noticed the corals not looking so good. Water parameters same as prior to the diffusers. I few corals STN'ed, (2) Favias lost color, a Bird's Nest was turning brown. I read that shortly after you added the diffusers you had some issues also. So this past week, I have removed the diffusers, lowered the intensity to 50% to see if that helps. I did pick up an Apogee SQ-520 to get some idea what the PAR is. It's on this weekends To Do List.
So this brings me to my post, I have a couple of questions.
Quote:
Originally Posted by d2mini
After speaking with Ecotech and discussing their new DLI findings along with my light schedule and intensity and low nutrient system, I decided to lower the light intensity a little bit. But that was after these pics were taken. I also need to start feeding more. I haven't been feeding the tank anything specifically for the coral and other than the tang, most of my fish are small. Will see if the colors intensify at all.
Thanks!
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Is this something other than what's in the Coral Lab Paper they did in conjunction with WWC? Since the data was based on them using G3 Pro's I would love to see Ecotech update the paper with the new G4 Pro's both without/with the diffusers.
Quote:
Originally Posted by d2mini
Finally got the Radion Diffusers installed! 
Honestly, it's not that much different than before. Still plenty of shimmer. And not much loss in light. I have a hand held photography light meter than can measure LUX and I'm recording only a 3-5% loss. The tank looks very evenly lit with very little shadowing. I'd say it's a very subtle but nice upgrade.
Also, I kind of like not seeing those individual led domes on the pucks.
Looks more finished IMO. |
With no change to before and after settings, have you had a chance to get new PAR readings?
Also in one of your posts, you had a Youtube link on how to photograph a reef tank. I can't seem to locate it. Can you please share that again, thanks.