View Full Version : Light Cycle

01-30-2011, 08:12 PM
Just looking to see what the most popular light cycle is.

I am running:

1 hr blues (dawn)
7hrs Full light
1.5 hrs blues (dusk)

Looking to see what has worked for others.

01-30-2011, 10:30 PM
i run 12 on 12 off right now once i finnish doing my new lights it will be 1hr dawn 10 hrs day light 1 hr dusk 24 hrs moon lights

01-30-2011, 10:33 PM
I run my MH for 10 hours and instead of actinics I run 50/50 PCs for dawn and dusk. The PCs are run from the seasonal cycle of my Apex so they run for 1- 11/2 hours before and after the MH.

01-30-2011, 10:38 PM
1.5hrs dawn
8hrs daylight
1.5hrs dusk

01-30-2011, 10:44 PM
3hr dawn
5hr full daylight
2hr dusk
then total darkness....... lol

01-30-2011, 10:47 PM
3hr dawn
5hr full daylight
2hr dusk
then total darkness....... lol

Just wondering... what are you growing in your tank? Have you noticed any slowing of growth with only 5 hours full spectrum?

01-30-2011, 11:01 PM
I have nothing but SPS in my tank. I am running a 6x54w Ati powermodule and am getting great growth a PE. I read somewhere that sometime less is more when it comes to lighting and I have been very pleased with how my tank has responded to it. I will try to find the article.

01-30-2011, 11:06 PM
1.5 hrs leds 1 hr actinic 11 hrs full lights 1 hr actinic 1 hr leds.

01-31-2011, 12:45 AM
I run a 2hours dawn, 5hours daylight and 2 hours dusk... and I suddenly feel like im not giving my tank enough light reading these numbers...

01-31-2011, 12:50 AM
Dawn/dusk actinic on at 8am, off at 12:00 am. Halides on from 1:30pm to 9:00pm.

01-31-2011, 02:26 AM
3 Hours Moonlight (6am-9am)
3 Hours T5 (9am-12pm)
6 Hours T5 & MH (12pm-6pm)
3 Hours T5 (6pm-9pm)
3 Hours Moonlight (9pm-12am)
6 Hours Total Darkness (12am-6am)

Seems to work well for and gives lots of different viewing modes :)


steve fedyk
01-31-2011, 03:19 AM
2 hour dawn, 7 1/2 hour daylight, 1 1/2 dusk with moonlight

01-31-2011, 01:28 PM
still playing with my vortex-plan on dusk and dawn and settings as they would have in indonesia

01-31-2011, 07:13 PM
6 hours full light.

01-31-2011, 07:29 PM

10am - 22K T5s
1pm - Halides on
8pm - Halides off.
10pm - 22K T5 off.

So I guess that's 3 hours dawn and 2 hours dusk, 7 hours day grow.


01-31-2011, 07:39 PM
I didn't see my choice which is 2 hours morning actinic, 10 hours sunlight and 2 hours evening actinic.


tang daddy
01-31-2011, 08:35 PM
My daily light cycle for winter is 3pm to 3am atinics, which is 2 overdriven t5 @ 80w per with ati blue bulbs, halides kick on at 6pm to 1 am and I am running 2x250w hqi ushio 20k.

For summer the atinics come on at 6pm to 6am halides from 9pm to 3 am and the reason for this is because of heat. I generally run my lights really late aswell because I am at work all day and want to see the tank at night, I tend to run the halides longer in the winter and less in the summer... My tank also gets natural light from a window so that helps...

01-31-2011, 08:37 PM
10am - T5 on
3pm - halides on
8pm - halides off
10pm - T5 off

02-01-2011, 12:10 AM
8:00AM Actinics on
12:00PM MH joins the actinics
8:00PM MH off
9:30PM Actinics off

02-01-2011, 06:41 PM
Actinic on 6:30 am
MH on at 2 pm, off at 8 pm
Actinic off at 10pm
24hr Moon lights

02-01-2011, 07:56 PM
10 am - Actinic + Aquapink on
11 am - Actinic and White on
9 pm - Actinic and white off
10 pm - Actinic and Aquapink off

So 1 hour for dawn and dusk and 10 hours of full spectrum. I like using the Aquapink in my dawn/dusk......seems more like a sunrise/sunset IMO

02-01-2011, 08:01 PM
I see a definite trend here with daylight. It seems most people are at 8 hours or less, myself included. 5+ years ago, a similar poll would typically show 10 to 12 hours of daylight. I think we're seeing a lot nicer tanks now with reduced photoperiods.

02-01-2011, 10:41 PM
My light cycle is forever changing with the daylite hours.. so I don`t have set cycle I have seasons.

02-01-2011, 11:47 PM
10am: 22k T5 on
12pm: Halides on
7pm: Halides off
10pm: T5 off

02-02-2011, 12:01 PM
I run blue LEDs for an hour as dawn then daylight for 10 hours then 2 hours of blue LEDs as dusk

02-14-2011, 01:57 AM
My light cycle is forever changing with the daylite hours.. so I don`t have set cycle I have seasons.

Possible to expand on this?

02-17-2011, 12:21 PM
7am to 8am--actinics for dawn effect
8am to 1pm--off. The way my tank sits I have natural sunlight that comes through
1pm to 7pm --full light
7pm to 9pm--actinics for dusk effect

02-22-2011, 02:07 PM
10am-1pm UVL Super Actinics
11:30am-1pm UVL 454
1pm-7:30pm 150w HQI
7:30pm-9pm UVL 454
7:30pm-10pm UVL Super Actinics
10pm-10am LED's

02-26-2011, 02:49 PM
Dawn at 10:00am pc1, 10:30am pc2, 2:00pm mh1, 2:30pm mh2, 3:00pm mh3, till 7:59pm full daylight, 8:00pm mh1 off, 8:30pm mh2 off, 9:00pm mh3 off, 10:30pm pc1 off at the same time sump refugium light on, 11:00pm pc2 off, led night light is always on.

02-26-2011, 03:21 PM
I didn't see anybody mention adapting for the lunar cycle.
Is anyone doing that?

02-26-2011, 04:32 PM
I have the illumina so I have 3 hour sunrise 7 hours of day light 3 hour sunset then the lunar cycle for night time. Im thinking of cutting down my day duration as it maybe a little long. I also have 6 cloud periods a day with a 5% chance of lightning! :lol:

02-27-2011, 03:43 AM
how do you do your clouds-haven't figured it out yet-as you know the damn light doesn't come with instructions