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830 Posts
Discussion Starter · #1 ·
I'm curious about your lighting sequence. I did mine according to the manufacturer's and apparently from what i've seen in my club and others it totally bogus. So do you mind sharing your; start to finish, periods, and combination thanks.


Captain Obvious
1,188 Posts
LED actinics come on at 12noon
MH 20ks come on at 1pm
LED actinics go off at 2pm
LED actinics come on at 7pm
MH 20ks go off at 8pm
LED actinics go off at 10pm
tank is dark from 10pm to 12noon this next day

MH 20ks on for 8 hours
LED actinics come on a hour before MH
LED actinics go off 2hrs after MH shut down for the day
No reason to have actinics on during the main MH lighting cycle


13,149 Posts
Sequential lighting

I've been wanting to get my lights on a shorter spread from Sunrise to Sunset
Hopefully the corals will no balk at this and the halimeda will.
This is how my canopy light fixtures are set up on the controller
Ch1 : Ch2 . Ch3 : Ch4 : Ch5 : Ch6 :
The colon symbol ( : ) represents a pair of lamps ( . )= single lamp
Ch2 only has one PAR38 lamp in it so I am running a total of 11 lamps.

This was the old light Key code
Ch 1. 7:00 AM - 2:55 PM
Ch 2. 8:05 AM - 4:25 PM
Ch 3. 9:15 AM - 5:25 PM
Ch 4. 10:30 AM - 7:15 PM
Ch 5. 12:01 PM - 7:55 PM
Ch 6. 2:00 PM - 9:55 PM

New Key code

Ch 1. 11:00 AM - 7:00 PM
Ch 2. 11:30 AM - 7:30 PM
Ch 3. 11:50 AM - 7:50 PM
Ch 4. 12:20 AM - 8:20 PM
Ch 5. 12:50 PM - 8:50 PM
Ch 6. 1:20 PM - 9:20 PM

This shortens the spread from nearly 15 hrs to 10hrs 20 mins
Still getting 8 hrs per channel, just later Sunrise and sooner progression
to the next row of lights.
I'll probably change this yet again, but I don't like changing things, nor too quickly. I think there's a video of the sequential firing of my lights
late in my canopy build in my sig.

870 Posts
2 kessil 360 controlled with an apex.
Sunrise 11:30 with just 10k channel
Light intensifies up to 5pm
Also start to add actinic channel around 2pm.
From 8pm to 11:30pm intensity is ramped down
And 10k channel is reduced leaving only actinic by 10pm.
11:30 lights out.
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