Light question (New to indoors)

[Howard]

First indoor grow. Four auto flowers at three weeks since seed under a Migro 400+ light, 13 inches above the plants, dimmed down to 320PPFD (using a PAR meter). I know to keep the light intensity down during veg but at what point should I start increasing the light?

 

[Mañ'O'Green]

First indoor grow. Four auto flowers at three weeks since seed under a Migro 400+ light, 13 inches above the plants, dimmed down to 320PPFD (using a PAR meter). I know to keep the light intensity down during veg but at what point should I start increasing the light? View attachment 1144226

Outdoors the day length increases a little bit every day in nature until the summer solstice when it begins decreasing. There are many schools of thought on that. I run my COBs ~45w from week 2 through Harvest 18/6. I add 720nm for 10 days at beginning of flower for 15 minutes at lights out, then I add UVA (10 hours) middle of the day the last 4 weeks of flower and UVB (2 hours) Middle of the day the last 3 weeks of flower.

 

[noone special]

Im a little less scientific 200w of cob LED from shoot to about 2 weeks @ 18/6
4-600w of metal halide week 3- 6 while training in veg @18/6
600w blast hps @12/12 for flower


photos obviously but light is food give em heaps lol

 

[Howard]

Thanks. Indoor autoflowers promise to be a great hobby but are a whole new learning curve.

 

[automan2]

Great hobby it is! Growing autoflowers inside became my primary hobby 14 yrs ago...my very first grow was joint doctors low ryder ll...with so very little info available back then, we learned to leave em alone but I did figger out that cannabis was a tough species and can survive through mistakes that you will definitely make.
And then you get to burn the evidence.

 

[Simplicio]

Start with your light very high.
I start at about 40 inches.
Then move the light about 3 inches closer, and wait a day.
If there is no tacoing of the leaves, then move another 3 inches closer.
Keep doing this until you begin to see some tacoing, then back off, because that's too much.

I'm using some 60 watt COBs, and can't get the plants any closer than 30 inches without leaves looking unhappy.