This is my first grow and honestly have no idea what I’m doing. Watched a couple canuks videos on YouTube and figured i could do it. So I order 4 seeds from canuks seeds. 1- sour diesel 1-amnesia 1- zkittles and 1-gelato. I’m kicking myself in the ass for doing his way and not germinating the seeds first but I just threw them in the dirt. I’m using a soil/medium called just add water. So they all popped at different times, sour diesel being the last. All 3 were off to a great start until sour diesel popped up. Then it seemed like everything stalled. The sour diesel is now going on 5 days and hasn’t gotten its first leaves. Also the tips on the amnesia are yellow/brown. Please help!!!!!
In the real estate field the popular saying is location, location, location.. In cannabis, it's genetics, genetics, genetics! Know what you're growing and who made it.. First and foremost!
5 days above soil with out a true set of leaves, is an issue.. It's highly unlikely that it was caused by something you did/didn't do though.. It's just a bad seed, possibly bad genetics. The tip burn could work both ways.. Could be that the soil is too hot, or that the seedling is sick/sensitive. Im leaning towards it being a sick/sensitive seedling.. You said you bought 4 seeds, then said that "all 3 popped up at different times", then posted pics of 2 seedlings.. So you either have one or two other seedling that aren't shown, that must be doing ok. If that's true, that tells me that the soil is probably not too hot. If so, all of the seedlings would have tip burn. The discoloration on the seedling without true leaves, is called varigation. It's not related to nute burn.
For the seedling with leaf tip burn, you can always dig it up and transplant it into a lighter potting soil. Or you can wait it out and see if she recovers. Some do, so don't.
Ps.. Rule 1264 of growing your own.. "Don't listen to dudes that work in grow shops".. They don't know your situation or experience level. They are salesmen, not mentors.
Rule 1023 of growing your own... "Mimic nature whenever possible".. Nature doesn't use pre germ techniques. No paper towels, no DVD cases, no complete darkness, none of that.. Mature seeds just naturally fall off of the plant and into the dirt to wait for rain/water hit hit them. This has worked perfectly for thousans of years. Your germ choice is fine, more than fine actually, because it mimics nature.