I'm pretty sure you can start your lights any time you want.
The deal is, lights can help fuel
algae growth, so many people leave them off entirely during the cycling phase. Other folks say a few hours of light a day will help preserve the biodiversity of your rock. You run your risks either way, just depends on what you want more.
Regardless of what you choose, you should stick with a stable day-to-day light cycle once you start. You can adjust it so it is on during your viewing hours, or you can use special night lights that are supposed to be invisible to the inhabitants (red, I think, but how they know they're invisible is beyond me??). Some simulate the moon with white
LED moon lights.
Theres a buncha options, and anyone can argue for hours what is the best answer... You really will just have to make up your own mind based on the facts as to what you want and go with it...
Don't you love how you always get a straight answer on here?
