How long do you run your lights?

[TigNJaxx]

I'm just curios what your lighting schedules are, and why.

 

[James M]

9am-9pm

 

[X-37B]

9 hrs for my 2 OR3 light bars.
8 hrs for my halides.

 

[Sleeping Giant]

Mine turn on at 630am, ramp up to 10am until 9pm, ramp down until 1230am then shut off completely until 630am

 

[Jedi1199]

I run a 12 hour cycle on mine... 6 am to 6 pm. 2 of the tanks have a ramp up and down setting that I employ, the 3rd is a simple on-off timer.

 

[PeterC99]

7:30 am to 9:30 Pm with 80% Point Light Intensity for 5 hours of that time.

 

[G Santana]

Lights ramp up from 8-8:30 ramp down at 7:30pm off at 8pm

11 hours on full

 

[shadow_k]

I run mine from 12pm-11pm 1 hour ramp up and down

 

[takitaj]

10am to 10pm with a looong ramp up to a peak in the middle (virtual noon) then back down. Early and late ramping changes to deep blue/violet. Around virtual noon is more whitish. I picked that time period so the wife gets to see it too.

 

[Idech]

0930 to 1830 with a 1 hour ramp-up and 1 hour ramp-down. My tank is still new so I am going slowly to avoid an algae bloom.

I don’t have much coral in the tank right now and I’ll adjust as need be when there is more.

 

[Duffer]

12 hr cycle from 10 to 10

 

[Paul B]

I don't know. Every time I go downstairs to look at the tank, they are on.

 

[vetteguy53081]

Blues on at 9am -10:30p
OR3 bars on at Noon - 11p
Orphek and Hydra 26 on 3p-10:30p

 

[Schraufabagel]

8 am to 7 pm. They ramp up and down for 2 hours on either end

 

[Ksivic]

Blues come on at midnight.
Ramp up starts at 730am
Blues go off and whites go on at 8am
Whites go off at 4pm
Ranp down until 430pm
Dark from 430pm until midnight

 

[N.Sreefer]

9-9 with ambient daylight that serves as the ramp up in the morning and down in the evening (for most of the year).

 

[Acroguy]

11 hours Ati powermodule on/off

 

[ZoWhat]

Two light cycles

8am to 1pm Mostly 400-470nm Actinic

1pm to 5pm OFF

I'm usually out of the house running around anyway. Read somewhere a long time ago, maybe from Dana Riddle r2r lighting expert, that light periods longer than 4-5hrs only promotes algae and does little for coral growth/color..... meaning corals get their light nutrients inside 4hrs and not more than 4hrs. I've been practicing two light periods fir YEARS. Corals and fish have adjusted and come to expect two light peroids.

5pm to 11pm Mostly 400-470nm with a Red light pop

11pm to 8am OFF


.

 

[Camaro Show Corals]

12 1/2 hours, 15 minute ramp up each way.
9:30am-10pm

 

[Spare time]

10:30-10:30, but the amount shifts (white channel on for a little less)