Red Sea 90’s

Hemmbone20

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Just curious what others are using for settings on their Red Sea 90 lights.
I have 2 over my Red Sea 350 mixed reef tank. I have some SPS at the top of the tank, so I want the lights to be strong, but I also have some lower light corals at the bottom… (75-150 par target)

I’m fighting the urge to mess with the settings but I’ve been unable to find good info online about what people typically set their lights at.
Obviously I watched the BRS video going over PAR measurements for these lights, but they only show measurements when lights are running at 100%. I’m also a little confused about the whole “PAR vs PUR” thing that Red Sea mentions in all their guidance..

Main reason for my concern I guess is my stylo frag seems very bleached, and 2 frags of my zoa frags at the bottom rarely fully open. I’m surprised I’m seeing that with the lights only running at 80%. Trying to determine if the issue is lighting or something else.

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nostalgiaforinfinity

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Hi, I came here to learn about this. Bummed there's no reply. I have (1) 90 over a 42 gallon display. Red Sea shows the PAR chart for the 90 on their site. I also don't really know what the difference in the percentages are.
 

crazyfishmom

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I have measured the PAR for my RedSea 90s and 14 inches under the tank/2 inches below the water I was at 400-500. 20 inches down (bottom of the tank) I was at 75-100.

Stylos do well at around 200 PAR or so. At least that’s been in my tanks.

Have you tried moving the zoas up a bit to see if they do better higher up? Depending on your tank’s depth and the variety of zoa they may need more than what they’re getting.
 
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Hemmbone20

Hemmbone20

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I have measured the PAR for my RedSea 90s and 14 inches under the tank/2 inches below the water I was at 400-500. 20 inches down (bottom of the tank) I was at 75-100.

Stylos do well at around 200 PAR or so. At least that’s been in my tanks.

Have you tried moving the zoas up a bit to see if they do better higher up? Depending on your tank’s depth and the variety of zoa they may need more than what they’re getting.
Are you running yours at 100%?
 

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