Too Much Light? Lights on hours?

[creedjonny22]

Hi Guys, just planted my aqua scape and had a question about the lighting/co2. What times should I put the lights on and off? Is there such a thing as too much light? Should the Co2 be on for the same time as the lights are on? Does it harm the fish if the lights are on too long? Pictures attached.
Thank you in advance.

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[foxfish]

What is your schedule at the moment?

 

[tam]

I'd go for a maximum of about 12 hours for the fish, that way you can maintain a day/night cycle. But, you'll probably need less than that (some people only run 4-6 hours) to avoid algae. Most people go for as long as possible, without creating an algae farm, as they want to see in. The algae farm point depends on all sorts like lights, intensity, how close to the tank, plant mass, CO2, floating plant coverage etc.

 

[Kalum]

Put the lights on anytime that suits you, mine are 5pm to 11pm as I want to see the fish when I'm home

Yes, the more light you have the more problems with algae you'll come across as you'll have to chase it by upping co2 and ferts to accommdate it

General consensus is co2 on an hour or 2 before lights and off an hour before lights off but this depends on your tank and setup and should be tailored to suit your needs to get a stable routine

 

[ian_m]

We need a lot more information before we can suggest things.

1. How big is the tank ?
2. Have you got at least x10 filter turn over of tank volume if using CO2.
3. What are lights and their lumen values ?
4. How is CO2 injected and distributed ?
5. What is your fertilisation scheme ?

From initial guesses with apparent lack of filtration rate, lack of fertiliser, poor CO2 injection & distribution, no fertilisers, too brighter lights on for too long, you are only a couple of days away from melting all your plants and converting them very successfully to algae .