Blue light (1 Viewer)

[decimal]

I am curious about the blue light intensity coming from night time “moon light”. Can I run my blue LEDs @ 5% and not affect circadian rhythm of corals/fish?

Basically I’m running reefled 90 and am wondering if it’s cool light the tank at night with 5-10% blue and/or 10% moonlight. Less? The app always alerts you that you are going outside of a 12hr light cycle.

 

[jrounding]

For my Hydra 32s I just use moonlight at night and let it do its lunar cycle. I have it as a very low intensity and I am having good results with my corals. I’m running 3% moonlight. Just enough to give it a little glow.

 

[air_run]

I'm trying try this on my new build. Currently I have the 2nd set of T5's go off at 9p. From 9p - 12a the LED's (blue only) are on at 1%. I have the LED's come back on at 1% from 6a - 9a. They then ramp up with current lighting schedule.

 

[R-BallJunkie]

i dont understand the concept behind moonlights. Every single night dive i have ever been on has been pitch pitch black and sketchy AF. there is zero light transmission. total black out even in the shallows 15'

night dive pics for fun

 

[decimal]

The reefleds have 3 channels, blue, white and Moon. At 1% it’s is not strong enough to light anything up. idk maybe only on full moon then? I get it if it’s cloudy but with a big moon in the sky things can be almost bright. The change in lighting intensity comes from the moon reflecting the sun vs daylight = direct path to sun light. Oddly enough, the spectrum profile appears to be the same with the color change coming from the aforementioned reflecting.

 

[jrounding]

I’ll be honest here. My corals don’t seem to care if the moon light is on, but my inverts are very active at night and I love watching them. Moonlight is what makes it possible. I’ve read that since moonlight is quite white it can breed algae so keep intensity low.

 

[Subsea]

I’ll be honest here. My corals don’t seem to care if the moon light is on, but my inverts are very active at night and I love watching them. Moonlight is what makes it possible. I’ve read that since moonlight is quite white it can breed algae so keep intensity low.

Kudos to inverts more active at night under blue light. At one time, I ran red led’s for observing night time behavior.

 

[Tangs]

I turn on my basic reef light on when I get up and turn off when I go to bed. I do find that the extended day light hours makes my corals grow faster. So 15 hours of light. I do get a bit of red algae but I have only had to scrape it off a bit once. A 30 second job. A bit of green algae on the front glass but I use my magnet once a week for a minute. Plus I get to enjoy in living colour longer.