Too Much Light?

Should keep your 150 watt lamp at 60 cm distance - 50% dimmer

looks a bit squat and the leaves are tightly spaced... possibly too much light. Simply raise the height or dim it a bit and keep an eye on it... the plant tells you everything. too much stretch = needs more... no stretch at all = needs less. there should be some distance between intial sets of leaves... if stacked on top of each other, it's almost certainly too much light. 1gal pot is a bit large for a seedling, but should be fine. i'd still stick to standard irrigation practices though (water entire thing)... you don't want to water superficially... you don't want roots growing upward. To avoid this you always water enough so that it gets wet all the way down to the bottom... normally this entails wetting entire volume.. but if you have a small plant in a larger pot, sometimes you just do a column around the plant, but you still make sure it goes all the way down. I don't have roots in my top 1" or so of substrate except in cases of extreme rootbound plants. i.e. it should not happen.. it's a sign of poor watering habits or the plant has been in pot for too long. the fastest evaporation will occur at the top. if allowed to occur, your roots will turn downward (they sense and react to moisture.. knee-jerk reaction, no thought involved). anyway, wait for top inch or so to dry before re-irrigating. always wet entire substrate... a little runoff with soil is never bad, though you want to minimize it. the volume of water needed is dictated by the composition and size of your pot. if you water at the same loss of weight (when top layer is dry, give it a feel), then it will require the same volume of water. you can only figure this out retroactively. if you use same components in same proportions and size next time, it'll be consistent. more perlite or other additives could cause a shift in that needed volume. e.g. coco holds 2/3rds the volume of water as sphagnum peat moss.

Thanks everyone! I appreciate the help. I'm extremely new to this. Figured I was doing good just getting then above ground. As far as the manufacturer instructions, I believe that's was part of the issue. 16in at 75%. Vipar v1000 LED. Definitely could understand how they got too use to the other light. I've since raised it but will Definitely turn it down now that I know better. Gonna keep a eye on her the next few days. It's a phototype and I hear they can recover well of you catch the issue. Trying to start 1 more strain and don't want this issue again. Thanks again!

You have nothing to worry about. Tip: water a few circles around the plant. It will encourage the roots to seek out the water, the further away, the longer the stretch, the bigger the plant. Tip 2: Run the lights, whether 100 true watt or 600 true watt; run the light at 50% for germination- Then increase 5-10% every week. Tip 3: After mixing nutrients, wait 30 seconds and check Ph, then half way through watering (if soil) re check and see if Ph is still in proper range. And finally, Relax and let the plant do it's thing. They're resilient and can be such beasts.

Assuming the new light is a led 75% is way too high at this stage. I only have my light set to 25% . If u don’t have a par meter download the photone app and try and get your ppfd around the 250 range