Is growth small for 3 weeks ! I expected It much l...

Yes it's too small but it's still alive! So... Don't add vinegar to the water. Buy a bottle of pH down. Bring your pH to 6-6.5 it is very important, now important than you think. Water less frequently, I water once every 2 or 3 days usually, when you water don't down it and its good to keep it under some kind of plastic dome so the leaves stay moist. Change your lights to 20 hours on and lower the distance slightly, this will warm up the temps and help keep humidity high and dry soil quicker. You also want to pick up some nutrients and think about adding little amounts soon. 🌱😁👍Hopefully we can save her!

Hi Autoauto I think your biggest issue is you have been overwatering her consistently. This has resulted in poor air circulation around the roots system, water 🚿 Is not drying quick enough and have stunned her root development. As I will say the roots are the heart off your plant. It's an Autoflower And for 3 weeks old she looks bad to me. It's going to be difficult to save her now even if you do don't expect to much off a yield. My Autoflower grows are normally flowering by week 4. Bushy,Leafy,Pistils Not really high but I even top them at day 9. Have a look at all my Diaries week 3 for understanding how big they could get in short 3 weeks. Recommendation It's sad and difficult to accept in your case I would plant another seed straight away. And leave this one on the said probably lift her closer to the lamp. Will be nice if you can afford BioBizz light Mix soil For your next grow it's ideal for Autoflowers and adjusting its own soil PH. You can use tap water only. Sad but hope this helps. And good luck growing.

Hello there! Unfortunately, she is quite stunted for a week 3 plant, but that can change quickly. The quickest way to drop your soil pH is to use a pH down concentrate. Can be found online, hydroponic shops or even your local greenery. Using vinegar is a good old remedy, but can be hard to pH balance or concentrate the dose correctly. If you have access to pH down, I highly recommend. Super cheap acidic base👍 WITH instructions, lol. Also, from the pictures provided, I see she is semi-water logged and this can easily stunt growth. Roots are not developed enough and she is probably suffocating a bit. Nothing to take up that water and the medium will need a decent dry. Early on, I usually use a a 50ml syringe and localize my watering about 1/2-1 inches from the stem. Might have do this more then once a day, but it does mitigate the risk of over-watering. (Side note: sometimes I will till the soil around the plant where I know there aren't any roots. I do this by hand and mix it up. This aerates the soil and it will dry quicker for you) Lastly, i feel your lamp could be moved a bit lower. If it's hanging at 40" she may not be getting enough light. At this stage of the game, 24-30" is recommended for your LED for optimal growth. The lamp being closer will also help dry out that soil faster👍 That's really it. I do not believe there is anything wrong with her, just a little behind and looking for air. With these small changes I'm confident she will start to move for you....and then you might have trouble stopping her, haha! I hope this help and wasn't too long a ramble. Of it does help and you need anything else I may be able to help you with, drop me a line in PM. Cheers and good luck! You good!👍😀