Suggestions on problem with seedling

Hi guys,
These 3 seeds were all planted 20 days ago.

One of them sprouted later than the others. I thought it would catch up with the others but it appears to also be growing alot slower.

1-Either water ph is too high or too low
2-your soil has nutrients that it can't handle yet.
Belive it or not this holy grail 69 is one month old from sprout and the bigger ones at the back all popped same day
My wrong was accidentally prayed it with the flowering sprayer and not the clear water lol stoner move.. I stuck labels on em now and leached the soil... It's growing again but slow

I agree your soil is to hot. I had the same issue so i transplanted to soil that has no nutes in it. Two days later it showed helathy growth.

like moth said ur soil is the problem...too hot means ur npk is fucked up...try a neutral soil like coco