Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12

Thread: Changing light cycle

  1. #1
    paul333 Guest

    Exclamation Changing light cycle

    Morning all.

    I need to change my light cycle so they come on at night (make use of economy 7) but at the moment my plants are on 12/12 from 7am - 7pm. Do I just bring it back by an hour a day or can I do more than an hour? My plants are in their 2nd week of flowering so I really don't want to stress them out (fem seeds). Any advice would be greatly appreciated.

  2. #2

    Join Date
    Feb 2009
    Posts
    979
    Thanks
    162
    Been Thanked: 210 Times

    Default

    I'm not an expert, but I'd say do it hour by hour rather in one go. it would prob mean less stress.
    anyone else?
    My name is Michael Caine, and I, am a pirate killer.

  3. #3

    Join Date
    Sep 2008
    Posts
    483
    Thanks
    0
    Been Thanked: 7 Times

    Post

    2nd week .... not a good time really as they are just trying to settle into the circadian rhythm you have given them

    When I have had to do it I gave them a 36 hr dark cycle and they turned out OK, less stress ....

    If you do it hour by hour you'll need to lengthen the light to give 13/11, if you shorten the light they'll think Fall is coming and may default to males or hermies

    Decent feminised seeds don't have any predisposition to go hermie any more than 'regular' seeds, I've found I either get very similar pheno's (Mandala) or wildly varying ones (Greenhouse)

    As this is your first grow and it's all settling down after a few 'incidents', you would be gutted if they did go wrong, even if it wasn't your fault ..... lesson learned, always flower at night, warmer in the winter and cooler in the summer .... and Economy 7

    Leave 'em be

    Bush
    Praise the Lord, pass the bullets, we will be Free

  4. #4

    Join Date
    Dec 2008
    Posts
    181
    Thanks
    0
    Been Thanked: 8 Times

    Default

    Yeah I'd leave em be mate. I'm doing 11am-11pm and wouldn't mind switching things around but it's my first grow and I'd be gutted if it messed things up.

    What's this Economy 7 all about, be usfull to know next grow?

  5. #5
    paul333 Guest

    Default

    Economy 7 with Eon means electric is a fifth of the price between 23.30 and 08.30. My last bill was £340 for a quarter and I can only put this down to my 400wHPS.

  6. #6
    paul333 Guest

    Default

    Quote Originally Posted by Bush Dr View Post
    2nd week .... not a good time really as they are just trying to settle into the circadian rhythm you have given them

    When I have had to do it I gave them a 36 hr dark cycle and they turned out OK, less stress ....

    If you do it hour by hour you'll need to lengthen the light to give 13/11, if you shorten the light they'll think Fall is coming and may default to males or hermies

    Decent feminised seeds don't have any predisposition to go hermie any more than 'regular' seeds, I've found I either get very similar pheno's (Mandala) or wildly varying ones (Greenhouse)

    As this is your first grow and it's all settling down after a few 'incidents', you would be gutted if they did go wrong, even if it wasn't your fault ..... lesson learned, always flower at night, warmer in the winter and cooler in the summer .... and Economy 7

    Leave 'em be

    Bush
    I'll leave them be then. cheers for your advice.

  7. #7

    Join Date
    Apr 2008
    Location
    In the matrix rolling a joint with neo
    Posts
    228
    Thanks
    0
    Been Thanked: 2 Times

    Default

    I wanna talk about 13 hrs on 11 off. Is it better, if so why doesnt everyone do it. What are the benifits, i heard it can speed things up.
    DISCLAIMER!
    None of this is real.........I suffer from cannabis induced psychosis. Anything that is said by me in these forumns is for entertainment reasons only. I in no way condone any behavior or actions that may break any laws. Anything said by my username or any other username coming from this IP ADDRESS is bollocks........................... ps i dont live at the same place this IP originates from i hacked someones wpa password so dont go busting down some poor persons door It would be such a shock.

  8. #8

    Join Date
    Oct 2008
    Posts
    606
    Thanks
    0
    Been Thanked: 55 Times

    Default

    I have just switch to 13/11 as my 12/12 from seed has really been dragging on I hope my plants like it. A question about economy 7, how do you get it .

  9. #9
    paul333 Guest

    Default

    Quote Originally Posted by captainzep View Post
    I have just switch to 13/11 as my 12/12 from seed has really been dragging on I hope my plants like it. A question about economy 7, how do you get it .
    I think most if not all electricity companies have different tarrifs. Just ring them up mate.

  10. #10

    Join Date
    Nov 2008
    Location
    Cloud cuckoo land
    Posts
    685
    Thanks
    42
    Been Thanked: 98 Times

    Default

    Quote Originally Posted by Bush Dr View Post
    2nd week .... not a good time really as they are just trying to settle into the circadian rhythm you have given them

    When I have had to do it I gave them a 36 hr dark cycle and they turned out OK, less stress ....

    If you do it hour by hour you'll need to lengthen the light to give 13/11, if you shorten the light they'll think Fall is coming and may default to males or hermies

    Decent feminised seeds don't have any predisposition to go hermie any more than 'regular' seeds, I've found I either get very similar pheno's (Mandala) or wildly varying ones (Greenhouse)

    As this is your first grow and it's all settling down after a few 'incidents', you would be gutted if they did go wrong, even if it wasn't your fault ..... lesson learned, always flower at night, warmer in the winter and cooler in the summer .... and Economy 7

    Leave 'em be

    Bush
    Sorry Bush Dr, not to be pedantic, but if you want to change the light cycle hour by hour, you would need to do 13/12, 13/11 wouldn't allow you to change the cycle at all.

    Which leads me on to my question, how will 13/12 affect the plant?

Page 1 of 2 1 2 LastLast

Similar Threads

  1. changing light cycle from day to night
    By glenn in forum General Cannabis Growing
    Replies: 2
    Last Post: 11-11-10, 08:21 PM
  2. Light changing help please?
    By unklecheech in forum Indoor Cannabis Growing
    Replies: 13
    Last Post: 28-08-10, 11:10 PM
  3. changing light cycle
    By nufc01 in forum Novice Section
    Replies: 1
    Last Post: 29-05-10, 10:50 AM
  4. Vegging light Hours Poll - whats the most popular light cycle
    By yoko2009 in forum Indoor Cannabis Growing
    Replies: 7
    Last Post: 23-02-10, 05:18 PM
  5. changing a light
    By THe2Timer in forum General Stoners Discussion
    Replies: 5
    Last Post: 01-06-09, 10:11 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


THCtalk.com Disclaimer - You must be over 18 years old to view/use this site .THCtalk.com does not encourage growing Cannabis or possessing Cannabis. Learning how to grow Cannabis instructions should be for educational purposes only. All Information contained in this web site is for: Historical reference, Scientific reference and Educational purposes only. Visitors to this website are advised against breaking the law as It is illegal to smoke, grow, or possess cannabis in the UK and some US States