Here’s an update 
I’ma worry wart so I don’t know if I’m on the right track or not.
I did put some nitrogen on my bigger plant so thank you guys for that.
Here’s the updated pics on all
Tell me if something is needed or off
And that’s a little soil on my bigger seedling lol
It looks a little curled?
Sadly that seedling died
This is the one that was beside it 
UPDATE!! 
This is my baby now 8 days later, how’s it looking?
Also, I never seen a cannabis leaf look like a four leaf clover.
Is that because it is a mix breed seed?
Still looking good with good coloration. Just concentrate on the new growth. Are you feeding them anything? What media are you in anyway? Growth seems a bit slow but that could be the strain. The odd looking leaf could be from stress as well. Either way, I wouldn’t worry about it.
Thanks for your reply!
I’m using organic potting soil here is the description
- Rich blend of sphagnum peat moss, humus & perlite
- Enhanced with Myco-tone
- Fortified with earthworm castings, alfalfa meal, kelp meal & feather meal
Also, it has been 4 weeks exactly since I planted the tail from germination. I thought it was slow too but it almost died. The other seed like it ended up dying. It is a mix strain seed I found in my flower. Called brain crashers. Think the strain mix is brain og and wedding crasher
I haven’t fed it anything but a little nitrogen lately because the last one died because I over watered it so I’m just trying to keep it alive because this one of my favorite strains to smoke. They don’t make it anymore
Should I spray a little mist of my nutrients that I have. I also have a separate spray bottle of nitrogen nutrient
I barely put a teaspoon in a small mister bottle of the nutrient in picture below
Ok those are for the flowering stages, which require higher amounts of P&K to help with bud development. Inappropriate at this time. In fact, I personally feel it too early to be feeding any nutrients as your media should be able to feed your seedling for another 2-3 weeks. And your plant doesn’t show hunger so…
Oh, and please don’t spray the plant with anything, especially with the N. I spray my plants only if absolutely necessary i.e. pest control. The humidity in your tent should be high enough that the plant can absorb moisture from the air through the leaves as well as from the roots. I like low to mid 70s RH.
How big is the final pot going to be? I would put her in 5G minimum and veg her until I can take cuttings from her and start cloning. It’s not that hard to do especially if you have an aero- or aqua-cloner. This way, you can preserve the strain.
Ok I won’t spray it with any
Also, that’s so cool! I can’t wait to make clones. I’m really excited thank you for that information.
I read the whole thread! Good job on your clones. That’s an awesome amount of information. I watched a video before I saw the link to your thread. They did the same exact thing except cut the tips, razor the end of the stem to expose the end for root stimulation, and put it in a cup of water for a little to grow some roots then add the root gel and plant inside of a coco pod in a propagation dome then plant into a bigger pot when ready.
I’m super excited and kind of impatient because I have ways to go before it will be big enough to cut three leaves of one stem. 
It’s going to be a while! But I am grateful for new information. Thank you 
Update::
Soo… I took this seedling out of the dome because it was doing great and I thought it would be strong enough to expand more in a bigger space being that it is 6 weeks
The first two pictures was yesterday
The second set is this morning 
Maybe too much water? 
I’m stressed… it’s so hard to keep this one from dying
I see nothing to stress about but that just be me. The new growth has nice saturated coloration. Now that the cotyledons have yellowed and died, it’s time to start thinking of feeding. I don’t know what you have planned for the eventual growth, if you are going by bottled nutrients or dry organic. At this point, you have your choice. If you do go bottled (or commercial), you’d need a general purpose 4-4-4 for the vegetative stage then use that bloom you have during flowering.
If you wish to go wet organic, you can make teas with kelp meal, earthworm castings and molasses. Take about 1/4 cup each of kelp and earthworm castings, mix into 1 gallon water and either let stand overnight (stirring every once in awhile) or use an aquarium air pump and bubble it up overnight. At time of feeding, mix in 1T of molasses and water. If you have no castings, use compost.
With dry organics, there is a lot in the market to choose from. Gaia Green is one brand that comes immediately to mind. Whatever you choose, just take it slow and underfeed. Easier to correct that way.
Cheers.
Ok thank you so much
I was stressing up to this point
I just don’t want it to die lol
I put some nutrients in it earlier
I’ll have to gather up the stuff you recommended. I don’t have any of that
I couldn’t believe all of those leaves shriveled up over night!
It looked so nice yesterday
like @canagen has pointed out ,the new growth looks verry healthy and you got a nice adventure ahead of you so try not to stress yourself to much cause as long as you pay atention to what u are feeding her and less is more and add as needed ,but nice little Brain Crasher ,Auto or photo,
good luck​:seedling:
Thank you! @Deanroche
I’m trying to I’m trying not to stress. It doesn’t help that my grow tent is right next to the window by my bed 
I check on them very frequently lol
This seed came from some bomb flower I had that they don’t breed anymore. I only had a couple of seeds and this of the one that barely survived
Even just kelp will be enough for the seedling. Made into a tea should feed it until you transplant into a bigger container in which I assume you will be using fresh soil. No need to get all I mentioned in one shot. Your soil mix sounds good so you can expect it to cycle at least one plant. In a 5G pot, you will likely need a top dress at flip. I can get away with no top dress in 7 gallons. This is water only regimen but you always have the option to include supplements like teas and such.