lighting for seedling

4

420grower.cali

Member

Mar 30, 2015

• #1

My seedlings r just starting to sprout and i need to find out what the light cycle should be? Im using a 24w 6500k cfl

 

AtomiCronic

Active Member

Mar 30, 2015

• #2

either 24, 20 or 18 hrs on.

 

Bucees

Well-Known Member

Mar 30, 2015

• #3

I've been doing 24 hours on for years with no problems.

 

4

420grower.cali

Member

Mar 30, 2015

• #4

AtomiCronic said:

either 24, 20 or 18 hrs on.

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And how do i know when to change the light cycle?

 

AtomiCronic

Active Member

Mar 30, 2015

• #5

thats a complicated answer, its gonna rely on a lot of factors including the pot and plant size you're growing and the flowering lights

 

Mad_Prophessor

Well-Known Member

Mar 30, 2015

• #6

18/6 gives them time to process. 24/0 is only for the first few days to keep the temps up.

 

4

420grower.cali

Member

Mar 30, 2015

• #7

Mad_Prophessor said:

18/6 gives them time to process. 24/0 is only for the first few days to keep the temps up.

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K thx bro

 

Mad_Prophessor

Well-Known Member

Mar 30, 2015

• #8

420grower.cali said:

K thx bro

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Any time!

 

hotshotisdashit

Well-Known Member

Mar 30, 2015

• #9

420grower.cali said:

And how do i know when to change the light cycle?

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This is a very debated topic and you'll get many different answers for many different reasons. Me, personally, I like 24/0 because it saves me from having to switch the light cycle on and off (call me lazy) and it keeps my temps stable. Its very cold in my basement this time of year and if lights are off it can get as low as 60 degrees.