What time are lights ON? What time do lights go OFF?

[RobW]

My light schedule is 11am to 10pm with peak intensity about 4 hours from 1pm to 5pm.

I'm pretty close to your schedule. 10 am to 10 pm. Im at full intensity by 11:30 am till about 7:30 pm.

 

[RobW]

Here's the schedule on my ghl

 

[Whispers]

I run a mix reef with acros on top 11am to 8 pm is that to short???? I get good growth and color

 

[chadfish]

Here’s my schedule using a Reefbreeder 32 V2+. It’s geared to deliver 170 PAR at the bottom and 250 at the top. Goes on at 8 and off at 10:15. 4 hours at peak intensity.
Any feedback is welcome

 

[Trouble1375]

10AM - 11PM - peak intensity from 12:30PM - 6:30PM - white max 43%, UV & Blue max 85%, Red/Green Max 35%

 

[X-37B]

On at noon off 8 for halides.
Or3 blue plus come on 15 minutes before halides and off 15 after so they are run for 8.5 hours.

 

[ultraArcite]

How much moonlight does everyone use? I do 1 hour in the morning and 1 hour in the evening, but there is no rhyme or reason for that system.

 

[Clownfish_Boy]

My lights go on at 6:00 AM and off at midnight.

 

[Bleigh]

I have a controversial outlook on this....

After doing some deep dive research about lighting cycles and coral growth I found several studies that indicated that corals max out the photosynthesis process at 4hrs max. At the 5th hr, their ability to utilize light for growth greatly diminishes.

So with that said, for over a year now I have two 4hrs light cycles:

8am to noon, 100% blues and 30% whites
* Noon to 6pm, 5% blues only
6pm to 10pm, 100% blues and 10% whites
10pm to midnight, 5% blues only
Midnight to 8am, blackout

* the key point is during this midday low light, corals have maxed out their photosynthetic potential and im NOT cooking the LR with light growing ALGAE !!!!

Over the year I've been doing this, great coral growth. Fish have fully adapted.

I have no plans to change what I'm doing.


.

Hmmmm. This is interesting. I want to look more into this!

 

[tkd]

Lights come on at 6am and off at 9pm with a 3 hour ramp up and ramp down. Running an AB+ light schedule.

 

[screefer715]

I run a mix reef with acros on top 11am to 8 pm is that to short???? I get good growth and color

I run my mixed reef with a led and T5 hybrid, leds come on at 10am and turn off at 9pm. The T5s turn on at 11am and turn off at 3pm. I get great growth out of everything in my tank with no algae outbreaks.