Hey Chris seedlings cotyledons turned yellow and died ( Skywalker OG ) this day 16 after seedling broke the surface. Plant under 300 PPFD or PAR ( MQ 500 Apogee meter) at 24”. Soil mix 1/2 happy frog 1/2 ocean forest in quart air pots. Tent temp avg 83* RH 55% to 65%. Using RO water ph‘ed at 6.30 . What do you think , am I worrying about nothing.
.png)
Im gonna use Coast of Maine and Ocean forest 70 /30 in 10 gallon air pots. My do great after transplant with just PH water. But in 3 to 4 weeks they seem to needs something.???