Light on/off time

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unix

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I read in one of the grow guides that in the veg stage i should have 16-18hours light and 6hours darkness a day, is this right? i have been running mine 24/7 maybe thats why my plants arnt growing really fast? cheers guys
 
unix said:
I read in one of the grow guides that in the veg stage i should have 16-18hours light and 6hours darkness a day, is this right? i have been running mine 24/7 maybe thats why my plants arnt growing really fast? cheers guys
I have found that my plants grow faster when the light is on 24/7. IMO i don't think that is the reason for your plants growing slow.
 
Ok thanks grunt, i m going to try 18/6 for a fewdays anyway just to see if any changes happen that i can notice, and will go bak to 24/7 like you suggested.. thank you again
 
unix...you may notice what "appears" to be a growth spurt, faster growth under 18/6, but IMHO, it isn't actually faster growth, but more stretching searching for light. This equals more distance between nodes, not more growth.
 
Auh ok then makes sence, so you also think i should go 24/7 mate??
 
"I" prefer 24/0 for vegging under flourescents, but I also like to give the light and ballast a few hours of rest and cooling period when I go to the HID.. So I usually revert to 20/4 or 18/6.
 
Yeh awesome man, i have a hps i know it isnt the best for veg i have heard.. i just put my light back on then im going to keep it at 24/7 maybe turn it off for an hour or to once a night or something to let it cool down a bit.. these where bag seeds to really good smoke but i thought i would start them while i wait for my skunk xxx seeds which i have just planted one now it should break through the surface tomorrow or nexday..hopefully it does well i just got some new soil today aswell withought the nutes and stuff in it just plane seedling soil/
 
got the tubes on 24/7 at the mo with the top of the plants 3" from them.
is that a good distance?
the room temp is 31c is this ok for smaller plants?
 

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