seedlings

hmm you think ill need more lights? i plan on moving them outside when they seem decent size...i plan on stacking them by 2s horizantly along the light....11 plants total....5 blueberry 6 shishkaberry all feminized crop king seeds....had a 100% succesful germination rate.....if anyone was wondering...

I use sunblaster lights and they can be much closer without harming the plants. Looks like a t'5 from the images and they can be as close as 4" away from the canopy in flower so aim for 8" in seedling. They are not the best lights but they do work. You will need an array of them if you plan on getting a ok harvest. Good Luck!

ya i noticed they looked kind of stretched...definatly going to put them in bigger pots in the next week. also lowered the light so its like 1mm above the dome lid....also got mad lady bugs in my house so im going to keep the lid on...it does have huge adjustable vents on top of the lid which i can open which will help with the humidaty....these seedlings are only like 80 or so hours since they were planted in the dirt....

18/6 is the best, no more - and all plants need sleep so definitely not 24/0! Remove the cover too, your seedlings need good air exchange to grow properly and air movement to strengthen the stems. They do not need extra high humidity, this is an outdated concept from the 1960s when no one knew much about cannabis and thought it came from jungles or rain forests, which it certainly does not. If you are planning to put these outside, you should be trying to match the photoperiod indoors with what you expect the dawn to dusk times will be when you move them outside. If you have them at 20 hours (which is bad anyhow) and move them outdoors and they are only getting 13 hours of light, this could trigger flowering or other freaky outcomes, like hermaphroditism. Normally, if the time between dawn and dusk is say 13 hours, you can add on another 90 minutes as it starts getting light before sun up, just like there is still a little light after sunset. Therefore your outdoor photoperiod would be 14 and a half hours, so an indoor photoperiod of 15 hours would be the best match for your indoor (and soon to be outdoor) seedlings. These thoughts should guide your indoor lighting cycle, however if there is 14 hours between dawn and dusk at your planned transplanting date, then 16/8 would be safe indoors. At the moment, your plants are quite stretched, which can be caused by high humidity, but in this case I would say you could lower your light a few inches to prevent further stretching, along with the removal of the humidity dome lid. High humidity can also cause all sorts of fungal problems which can be fatal to seedlings. I would also suggest transplanting them into bigger pots in the next few days, those tiny cups only have enough room for a few days of root development, after any more than a week in those tiny cups, it could induce stunting. They really are only sprouting pots, not seedling pots. Not being familiar with your light, if it is a flouro light, half the distance you have it now should be safe. Hope this helps, Organoman.

im planning on growing these to a hearty veg then transplanting them outside in my backyard right in the ground.....so ill stick to the 18 n 6 hour light cycle for the seedlings and do a 16-20 hour light cycle for the veg

While under that seedling light, you could do 24hours and probably not harm them, but a dark period of some length is still probably best. The stretch of the plants dictate height -- since so many variables on top of equipment make up the answer. if they get pale and weak stems (coincides with height), get it closer. if they get 'tired' move it further away. as far as light cycle.. 1 thing matters for photoperiod plants: the length of uninterrupted dark period. If that exceeds 10+ hours (there is variance here), it will start transitioning to bloom phase. So, stick to 16-20hours of light during vege phase or for autoflowers and let plant dictate how much it can handle in your environment (stretch or stunting etc). In vege phase, the only thing that matters is you don't give 10+ hours of uninterrupted darkness. to be safe, stick to 8 or fewer hours of darkness. After that, whatever helps dial it in best is a good option. While some photoperiods will bloom with 10 hours of darkness, the general suggestion is 12hours off/on. this is safe. 13/11 is safe too. I wouldn't bother the minimal increased risk unless you think your lights are a bit underpowered for the job. and extra hour is 1/12th more DLI than before. that can add up over 8-9+ weeks. if your light is already strong enough, this will only stress the plant, on the other hand. you've got a heavier duty grow light, eh? i don't know efficacy of those types of lights. probably need upwards of 50+w/sq ft. for a mature plant, but just a guess.

For marijuana seedlings, LED grow lights should be between 24-36 inches above the plant canopy (a plant canopy is: the tallest branches of foliage of your marijuana plants). Seedlings are delicate, and placing lighting closer can cause bleaching or stunted growth. Placing the light source at this height also avoids drying out the soil. At the seedling stage, less light intensity is best.