I’ve grown a couple times now, once for beginner’s luck and once to see there are some nuances to growing. My last grow ran into problems with WPM, and I don’t want to do that again. I upgraded my ventilation system and added filtration to the intake as well. Before starting, I ran an ozone generator in the tent to hopefully kill off any spores left over.
I have two ILGM Train Wreck seedlings started. I started two and one didn’t take off so one of them is about 2 weeks behind the other. Just getting established now and taking early vegetation slow I’m hoping that the smaller one will close the gap some.
I have a 4x4 tent using 2 HLG 260XLs for lighting. Right now I have only one running 24 inches away from the seedlings. I’ve been using a humidifier to keep the humidity at least 60% and the ventilation fans run to lower any spikes over 65%.
For ventilation, I have two 6 inch AC infinity fans, one pulling intake through a HEPA box and the other exhausting to a carbon filter. To open up some space at the top of the tent, I am using ducting to exhaust to an external filter. There are 3 fans moving air inside the tent in addition to the ducting coming in from the intake. My hope is that the air is moving enough and that external spores and pests aren’t getting in.
Once the seedlings are well established, I’ll transplant them into 5 gallon fabric pots and will be using FFOF to the bottom of the pot and FFHF in the upper part of the pot, cut with 20% perlite as I’ve seen recommended here. I’ve not paid a lot of attention to nutrients in the past, and my plants have turned pretty yellow early in flowering. This time I plan on using the fox farms feeding schedule, although I will start light with 25% strength and see how it goes.
My goals are to learn to train plants better so have better airflow, and I would like if I can get these plants to fill the 4x4 space. I figure that learning to train the plants will prolong the vegetative phase and I’m okay with that.
I do have some questions. How do I know how close to keep the lights to the plants? I have the light 24 inches away now, and took a few days to bring it up to full power, but it is now.