Is there such?

When my plant sprouts is it alright to have a light on 24/7 or can the plant have to much light? And how long until i start turning off the lights?

lol, you mean 24 hour light period, yes you can i would only do this for the 1st 2 weeks then change it to 18/6 under a MH bulb, then during flower a HPS bulb on 12/12

The plant needs darkness to simulate a natural light cycle; It needs 16-18 hours of light and 8-6 hours of light respectively. When you are readyy to flower, 12 hours light and 12 hours dark.

Bongman said:

The plant needs darkness to simulate a natural light cycle; It needs 16-18 hours of light and 8-6 hours of light respectively. When you are readyy to flower, 12 hours light and 12 hours dark.

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k when, your seedling or clone is just growing, 1-2 weeks i use 24 hours light under a fluro, then i put it under a MH light 18/6, it works WELL very well for me, off of 10 plants, i grew 3oz per plant, under 1000Watt hps/MH. in a
34"x20"x64" grow room. im going to be using the LST, SOG methods my next grow, and also topp everyone of them. So ten plants, LST, SOG i should be able to grow half pound - one pound per plant.

Oh sorry, didn't see you had made that first post. Yeah, I completely believe it increases the growth rate. But, have you ever grown from veg to flowering 18/6 to compare with? If the health of the plant is not affected by not having any rest, then I'm all for giving it a shot, especially with fluorescent lights.

I just get a bad feeling about what natural processes the plan goes through during dark hours, and what it might lose if it's not doing it.