When to switch lighting

Harvester315

Harvester315

Well-Known Member
I have 2 Northern lights autos presently under a t5 with 4 6400 bulbs and a few cfls. One of my ladies just got her first pistols today and that's when I planned to add in my 250W HPS. Should I do that today or wait for pistills on the other one also?
 
nicougrik

nicougrik

Well-Known Member
it all depends on how big you want it to grow. do you have the space ? Plants will usually double in size from veg to harvest day. post a pic of your plant.
 
Harvester315

Harvester315

Well-Known Member
Will post pic when I get home. Plenty of space. I was afraid to burn them or something. First grow and all. I have a journal that's a little behind. They are just over a foot high now. Autos. Would love them huge lol
 
Harvester315

Harvester315

Well-Known Member
Yeah adding. That's good to know I guess. I'm all about the learning process. Have 4 more that should be all popped by tomorrow. I'll add the HPS tonight, it's only 250W any suggestions on height from top of plant? It will be interesting to see the difference with the plants that have the HPS for longer.
 
bgmike8

bgmike8

Well-Known Member
Height is about heat. Use you hand. I have 600 watt that is air cooled so I can get down to 1 inch above plant if I want to. I wouldn't do that to a seedling but a plant that's doing well could probably handle it
 
Harvester315

Harvester315

Well-Known Member
I presently don't have a way to cool my HPS other than the fans in the tent(I'll include pics of my setup also) but if I ever do upgrade to a larger HPS I will get one with a cool tube.
 
Harvester315

Harvester315

Well-Known Member
Pictures as promised. First of the 2 plants, I think I gave them a little too much nutes. Watered them in the last 4 watering without any plain water. Gonna water in plain water next time and get a nute schedule for the nutes I use (Aurora Roots organics)

The second pic will show the area I am worried about on plant 1. Plant 2 seems okay. I just FIMMED that one as a test for fun. Then I will add the HPS and give you a final looks.
 

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kiwipaulie

kiwipaulie

Well-Known Member
Harvester315 said:
Will post pic when I get home. Plenty of space. I was afraid to burn them or something. First grow and all. I have a journal that's a little behind. They are just over a foot high now. Autos. Would love them huge lol
Click to expand...
I wouldn't worry about burning them. I start seeds under a 400w mh and they crank
 
Chef420

Chef420

Well-Known Member
Two things about autos;
Throw as much light as you can at them from the beginning. I run mine at 20/4.
They don't like a lot of nutes so go light.

Chef.
 
Harvester315

Harvester315

Well-Known Member
Thanks for the tip. I went light on the nutes but I fed it every time no clean water in between. After these 2 and the new 4 that sprouted today are harvested I think I'm going to try something different than NL autos.
 
Harvester315

Harvester315

Well-Known Member
Water when the top inch or so is dry. Eyeballing; been pretty good about not over watering. Maybe every 2 or 3 days?
 
Chef420

Chef420

Well-Known Member
Too much brother. You have to let them dry out until the pot is light to lift. Then saturate. Repeat. It's critical an not easy for us newbs to get right.
 
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