Thoughts on my first plants...?

Hello everyone this is my first grow. I started with 8 seeds I received from a friend who works at a local seed bank.

Sky Walker OG x Creamsicle

Elephant Bud x AlaskanTF

Chem Dawg Guava x Creamsicle

At the beginning of March I started germinating the seeds thru a glass of water and paper towel method and by the third day I planted and put them under a CFL. They all ended up sprouting after about three more days. I left them under the CFL to grow and after a little over two weeks, I transplanted them into slightly bigger pots and began using my 250w MH light at 75% w/ parabolic dome. It's been about two days under the MH now. I've noticed some of the plants don't look too happy in particular the Elephant bud strand, I maintain a healthy PH level in the water of plants and don't over water I think. I just recently added half the recommended Big Boom into every other watering (2 tablespoons - 1 gallon). I was struggling with high temperatures but I fixed my exhaust to vent the hood better and now maintains 72-77 degrees with average of 50-60 Humidity. I try and spray the tent and leaves a little to keep up the humidity up throughout the day but not to much only when needed. I check the soil with my finger tips and make sure its not too dry and I also have two fans that are moving the air around and hitting just the tops of the plants. My friend told me the plants usually run a little over two months for a complete cycle. I am curious as to when I should start using the rest of the Fox Farm Trio, I don't know want to over due it. I planted in Fox Farm Ocean Forest. When they ready for flowering, I plan on using a 600w HPS and continuing with the Trio. I attached some pictures to see what you guys think. There are two plants looking like they are struggling pretty bad. Any tips or thoughts would be awesome : )

They are too small to need food if you planted in FFOF!
A few look overwatered.
In organic soil, it is very important for young plants to *almost* dry out between waterings because it facilitates healthy root development. Pots should be light as a feather before watering.
Leave your plants alone and they will do fine. MANY new growers love their plants to death...

Ffof is kind of a hot soil nute wise for seedlings .....next time get a bag of there seed starter and then go into ffof ......be sure you don't over water them ....and remember your soil has lots of food in it already ....do not add any extras for at least a month .....and if you pot up with fresh ffof ...remember your adding nute rich soil again by doing that .....after your plants have been put in there final pot and it's been at least a month you can start feeding at quarter strength of recommended dose ....the grow big and the tiger bloom especially .....the big bloom is fine to give the regular recommended dosage because it's the only organic of those three nutes......GL hope that helps

Shoot, I knew they had nutrients in the soil but I should of done more research about when to add the Trio w it. Hopefully they can make it thru this over feed. I'll be sure to wait before adding anything else, and leave it alone and let it mother nature do her work. Thank you for the input!! If in a week and the two are still showing no development should I remove it from the others, does it effect other plants growth?