New Grower Light/light cycle questions

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Mainemedical

Trichome Hunter
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Hey everyone, this is my first grow and I am growing cream caramel autos. They are almost 6 weeks old and are showing signs of pre flowering. They are still pretty short because of a ph problem I had earlier in the grow but they are still growing vertically. I was hoping to harvest them around the end of December so I want to help them out by switching out my 600w mh for my 600w hps, which claims to have 30% more blue light. I also was considering switching my light cycle from 24/0 to 18/6. So I guess I have 2 questions, when should I switch to an hps? And if I change the light cycle will my yield be effect much? Any advise would be very helpful :peace:
 
You can switch to the hps now mate,the hps carries more red than the mh,and reds the primary colour for flowering nice buds :thumbs: also switching your light cycle shouldn't have any effect on your final yield.:smokebuds:
 
Alright thanks man. Should I lower the humidity in my room also? It's around 50 now
 
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