yellowing plants

hey guys my plants leaves are turning yellow/ dying off. i think its a nitrogen deficiency? ive got a ceiling fan running 24/7 What do you guys think I should do to save these?

Little more info pls
Like lighting, soil, Ph, etc, How often watered, Nutes, Temp etc, etc etc.
As much info as possible goes along way in getting a quick and correct answer.

Ringsixty is correct, but sure looks like over watering.....

Def yellowing from bottom leaves going up is a N def. My new clones that rooted in my cloner were left to long with out nutes and look just like that.
Also soil looks pretty soaked did you just water? When was the last time you watered? And what is the soil and nutes? I'm assuming you have a decent light since it looks pretty low and not stretched.

Ever try Maxicrop Seaweed Soluble Powder...I use it to germ, and continuous low doses as an additive...Its something you should look into...might help your yellowing situation and your over all grow!

I'd flush it and give it a 1/2 feeding of nutes, it appears to be a N def and flushing the crap thats been building up in the soil can't hurt either. And remember to let the soil fully dry out before you water it again, happy growing!

ya its nitrogen, but it could also be caused by a bad soil ph. Feed the bitch. shes gonna prefer something organic since you are in soil.

i got the same issue right now i switched soils from 707 to manna organic cocunut based. i was told it has lower nutes in it and it holds water better the reason for the switch that damn bag of 707 is huge. carrying a normal bag of soil is fine. but to carry a bag of 707 across a apt complex. i might go back to it. just have to get up at 3 am to bring in the bag of 707.

Just put the bag in a large laundry basket, with some shirts n stuff.

Updated photos

hey sorry I didn't post all of my info.

I have 2 plants under 6 CLF lights for flowering Im going to be putting in another 3 or 6.. anyways I'm using potting soil from shoprite I know its cheap. I don't think they are over nutes at all I really feel like they are yellowing from N deff. My temps are all running from 75- 81 lights out it goes to the low of 75-76. I DO NOT over water I let the tops of the soil become crusty.. this isn't my first grow just new grow in a new room/setup space.

If it is my soil I can always cut the soil with this organic soil I have down stairs just plain jane organic soil and mix some of this stuff in with it. Im also going to be putting a fan in the closet today.. I've really got to get over to the hydro store and pick up better soil and nutes and a ph reader.. that is all the info I have they are about 3 weeks old if not.