Hey there Max I saw you posting on the DD thread so I thought I'd stop over to say hi!
I'll sub thank you very much now ahem .... slide over let me thru ... I'll sit over here in the corner with my pipe and my weed and
hang here wit ya's. Cheers everybody.
Ok I use some Mars lamps in my grow. For seedlings I don't put them under LED until they are hardened off. So be careful you can burn the little ones. Move the lamp up high (30" +) or just get a CFL and a small fan to get them going for another week or so. I use CFLs at the pediatric stage.
Once you get flowers you can put the lamp right down on top of the main cola. A few inches is fine.. go see my journal and just go to the last page and see how I have my lamps hanging. I've had plants grow direct into the lamps with minimal burn. I was away on vacation and the plant stretched into the light. So you will be fine later on but now the little ones are extremely sensitive. You're not out of the woods yet at this stage, when I lose seedlings its in the beginning right where you are now. The seedlings have everything they need to get to the next level all they need now is a little water and some light in soil without anything added. You will get them ready for the fun part.
I actually stress a wee bit at this stage. It's the only time I loose them due to whatever.
I read your story about opiates and pain et all, that's how I got into this. I don't take them anymore at all and all I take now is the occasional aspirin and my daily medication with canna. I'm pain free. Cannabis isn't the only reason for pain free but it certainly helps me big time. I had arthritis in hip, back, toe... where else.. started swimming at out local gym and got off that crazy crack shit the doctor was giving me and I'm good. My wife found some bag seeds for me I had laying about and handed them to me and I knew right a way it was going to help me and it has very much. I of course moved past the bag seed but that was some mighty fine bag seed weed.
If you want to run 4 plants under a 400w Mars - probably not enough wattage. I have 10-12 plants running at any given time and I'm running 1200w of true usage. So that would be equal to 6 of your 400w lamps. You can grow with that lamp but it wont have a large enough footprint for 4 plants. They will grow spindly. Topping will only make matters worse. Suggest looking into LST (low stress training) to get feet wet on the training part without cutting the brains of the plant off. That and get another 400w lamp - you have room and the electricity usage wont be an issue and it will warm up so get a light and unplug the heater after the little ones are hardened off of course.
No need for chemical ferts - use your kelp and make some tea with it for the win! Specially if you want meds. Whats the point of growing with chemical fertilizers to grow for medication and health.
Analogy - The quality of hydroponic tomatoes compared to organic tomato - taste the difference? Exactly the same thing with cannabis. Organics is a lot easier... water for the win! Hard to beat that.
Cheers and keep it green!