First time grow

Hi @GringosGarden , there is no problem, it may have been a crease of the seed in the germination, these first leaves tend to yellow and fall. your plant looks healthy. good luck mate 👍

1800 is relatively high...but I would not put too much weight into those numbers. Lots of those ppms are soil matter/material being washed out, on top of excess nutrients and what not. I was obsessive about my runoff numbers until someone taught me to largely ignore them and focus on top side symptoms. Your plant looks great and if that feed had no ill affects, I'd wager everything is just dandy. I wouldn't go through with a straight up flush, but giving her a good feed/wash with heavy runoff, with 6.2-6.5, should help drop those numbers and you won't risk starving the plant with a flush. Quick example to make you feel better👍. I did my first run offs on my girls in 3 gallons. This was with three feeds, 4 waterings and no runoff. Those first ppm numbers I pulled were 3800... Hahaha! But the girls are totally fine. Just all that excess and soil material washing through. I'll knock those numbers down the same way I just suggested you can👌. Cheers and good luck man. I trust all will be well.

63% is high but with exhaust air on and 2 fans no problem in this stadium :-) with 2 fans a colleague made a harvest with 73% without mold :-)