DeeColorado

@BudHaks Hi there! Your pH is not acidic enough for your coco medium, try to stick in the optimal 5.5-5.8 pH range, this will help your plant to handle nutrients intakes. Managing pH and EC is a must, especially in soilless setups. I guess you're not really in a hydro setup since you're doing hand-watering, so I'd recommend not to overwater the container, mediums (even coco) must alternate between dry and wet phases, in order for the roots to search for water and spread. Your coco should never be 100% dry, but on the other hand it shouldn't stay 100% wet for too long, I think your seedling is suffering from too much humidity in the medium + in the air, roots can't breath and this might lead to deficiencies and/or nutrients lockout later. Now about the seedling stretching, it's probably because of the light-plant distance, which is weird because if your distance is 7cm you should be fine. It could also be the opposite: if the plant-to-light distance is too short, heat might be responsible for the plant stretching. Are you sure your light is not too far neither than too close from the seedling? About the nutrients, Coco by itself has nothing to offer to the roots, so you must add very light doses of nutrients in your waterings, or you may encounter deficiencies very quickly. Roots-stimulator and Nitrogen is all she needs at this stage. Since you're growing an autoflowering strain, don't follow the manufacturer's feeding schedule, start with 1/4 to 1/3 of what they advise, then slowly increase doses if plant is healthy / reacting well to nutrients intakes. Hope this will help, keep us up-to-date and happy growing 👊

Hello ! From what I can see all your parameters are good ! Nice led setup with good watts , good medium , temperatures are ok but a bit low , humidity should be a bit higher but that's good enough , but your Ph is not good : in coco you should start at 5.5 or 5.8 at least and slowly increase to 6.3 in late flowering so my advice is to correct you ph asap. 2nd problem is that your seedling are tall so maybe the lights ar too high : are they really at 5 cm from the top of the seedlings ? And last thing to me , your nutrients are all good but it will take a tweak to use them together as I never saw a nutrition schedule with differents brands : so according to me you should stick to the EC to know how you'r feeding them (you'v got an ec/ppm meter right ?!) , I would recommand you to folow your main nutrients schedule : the Coco A+B and tweak it a bit with your booster and additives !! I hope it will help you😁👍