How long is too long to run your lights on your saltwater reef aquarium?

BRS

How long is too long to run your aqaurium lights?

  • More than 6 hours

    Votes: 7 0.8%
  • More than 7 hours

    Votes: 22 2.6%
  • More than 8 hours

    Votes: 64 7.6%
  • More than 9 hours

    Votes: 75 9.0%
  • More than 10 hours

    Votes: 183 21.9%
  • More than 11 hours

    Votes: 97 11.6%
  • 12+ Hours

    Votes: 364 43.5%
  • Other (please explain)

    Votes: 25 3.0%

  • Total voters
    837

revhtree

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Some of y'all have grumpy fish because they never get enough down time and the others have too much energy because they don't get enough day light! HA! When it comes to lighting your reef tank what is a good balance of time, on and off, for the fish and the coral? Let's talk about it!

1. How long do you run your lights on your reef tank?

2. How long do you think is too long for the lights to be on?


image via goldy.singh.aquagold and Orphek
OR3_LED_Bars_reef_tank.jpg
 

bnord

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Run T4s with radions. The radions are on from 8:30 to 7:30pm with program ram-ups the T4s are on for 3 1/2 hours mid day.
try to mimic life near the equator.
I read in another post that there’s published literature that says corals benefit from an intense three hour light cycle. Is there any back up to this - could not find the article
 

Arthur_Dent

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I run 3 viparspectras noon to midnight every day. Ambient room lights from windows provide some light in the morning. Blues only for first hour. Blues and 1 of 3 lights on white till 3. all three lights on white from 3-6. Blues and 1/3 whites till 11. Blues only 11-midnight.
 

Tundra Cuttle

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I run my lights for 10hrs but many people in my area are running them for 12hrs.

One might run into trouble around 16hr mark depending on intensity, with lower intensity it seems lights can run longer without ill effect to corals, but at some point the corals need a metabolic rest period. I don't know if fish get stressed by longer photoperiod.
 
BRS

Have you ever had aquarium equipment damaged by livestock?

  • YES (tell us in the thread)

    Votes: 18 19.1%
  • NO

    Votes: 70 74.5%
  • Maybe now that you mention it

    Votes: 4 4.3%
  • Other (please explain)

    Votes: 2 2.1%
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