yellowing lower leaves

[ekm5015]

20 days old

2 northern light
2 white widow
2 purple power

soil - fox farm ocean forest
lights- 6 26 watt cfls
ph - 6.4

basically the bottom leaves are starting to yellow. is this N def? i watered them once with a half strength 3-2-6 fox farm grow big (two days ago) also on one of the northern lights there are a couple brown spots. plants are 3-6 inches and on their 6th-7th node and look perfectly heathly and green except for the bottom set of leaves.

these will also be planted in the ground outside tomarrow. any suggestions?

pic 1 is pp
pic 2 and three are northern lights

[AJL]

well the top one looks like a N def. because the smae thing happened to one of my plants and it was after i transplanted, only the bottom leaves got hut though so i think that was from the transplant. But everyone who looked at it said it was a N def.

[Ganja Guerrilla]

Fert burnt....... seedlings need no ferts for 4-5 weeks

you need a flush with PH corrected water you are now locking out nitrogen & potassium, but since your transplanting tomorrow just rinse ALL the old soil from the roots when you transplant,

they will recover