Too much light

[bugarte1]

I was wondering if leaving my led lights on for to long can hurt my coral ?

 

[melosu58]

Just like people corals and fish need time to recharge. I would not leave on more than 12 hours.

 

[Paulm7373]

I get away with leaving my lights for 8 hours a day - the last hour being my blue led moonlights only, and my corals are doing very well. I would gradually cut back and be cautious of any algae build-up from excessive light.

 

[rorybeau]

I leave mine on 24/7 and ots fine

 

[bugarte1]

I leave mine on 24/7 and ots fine

How long have you had you're tank for ?

 

[Paulm7373]

That is way too much and not only unnecessary but also a waste of electricity. Fish need to be exposed to both daytime light and nighttime just like us humans are.

 

[rorybeau]

have quite a lot of shade due to a rock ledge its almost complete darkness

 

[Bectan01]

Agree, you definitely need a period of total darkness. I run 8 hours full lighting with an hour of blues either side then total darkness, all of my corals close over for the night and the fishes sleep.

 

[rorybeau]

might try see if it aids the growth on my pulsing xenia, thanks

 

[Paulm7373]

While you're at it, check also if it makes a difference to your energy bill as well!

 

[rorybeau]

had some saving bulbs in so that cost wasnt that high but the bulbs were expensive

 

[Paulm7373]

Good luck with that and keep me posted on how things go with the reduced lighting.

 

[mr_X]

I leave mine on 24/7 and ots fine

What lights are you talking about and what is under these lights?
No way will corals survive without a night time period.

 

[melosu58]

I too agree. No way will corals and fish survive under a 24/7 lighting period. As I mentioned above the have to have a recharge period.

 

[rorybeau]

Par 38 and a standard 11 watt bulb the corals colour has brightened as well as an increase in size