alright here is the history on my plant...

they are 5 1/2 weeks old..
when they were vegging at a real young stage , i messed up and gave them too much fish emulsion which burnt them up badly and messed some things up, and my temps were in the very high 90's.. so they were seriously stressed .........

last week i made it up to the grow shop , i got some great advice..
i solved my temperature problem, it stays at 80 and gets lower to about 77-78...
i got them some foxfarms nutes which the guy told me had all the nutes they would need... giving them the veg nutes right now..
i also got one of those small water testing ph kits.. where you put the drops and changes color, in the minature test tube...
so my ph of my water was a little high, and i got it down.. also gave them 35% peroxide, to cure things, and remove knats..( dont really have any knats though.. )
they are in soil, and getting watered as needed...
they are still spreading the yellow/burning but at a very slow rate..
the top growth and all new small growth is coming in lovely.. just these past couple of days, i have started to LST to get more light to the center of the stem's , and that is going great.. middle of plants are filling in nice...
just the bottom of the plant and stems changing color...
i've got this ph meter that test the soil, actually 3 of them, but neither of them are really accurate... i can put it in one part of the dirt and it'll read X, and then put it in another part and it'll read Y.. nothing mathces up, so i dont really trust it..

it's happenin to a couple of my plants, but the pics are just of one plant...

thanks, PEACE!