Nitrogen Deficiency in seedlings? (PICS)

hey guys, i transplanted these into hydroton on december 30th and even though i overwatered them for the first week or so theres been real slow growth and the bottom leaves (theres only 3 or 4 sets of leaves) have been drooping/drying and turning yellow/white/brown and dying off and the new growth keeps coming up with yellowish tips. and the older the growth is, the more yellowish and light green the part of the plant seems to get.. its hard as hell to find picture comparisons of deficiencies for plants this small, i think its a nitrogen deficiency (or maybe magnesium?) but they’re so small its hard to tell and id hate to give them the extra nitrogen and be wrong, any thoughts?

strain- ak-48 by nirvana
water temp - 67, sterile res with 35% h2o2, 2 airstones, 20gal res
nutes - maxigro (i have "calmag plus” though)
ph- 5.8-5.9
ppm- 300
flood &drain in rapid rooter and hydroton, 1gal pots, flood 4x per day (every 6 hours)
400w hps on 24/7
canopy temps 74-78 humidity 35-60%

the one thing I’ve noticed is the 1 plant i re-transplanted (to check out the roots after overwatering) is now bigger and growing more then the other plant and the difference is the one i retransplanted is deeper in the pot then the other and the rapid rooter stays moist 24/7 whereas the other plants rapid rooter is bone dry, any comments or thoughts on that? also, the one i retransplanted has a few tiny red spots on one of the leaves if that means anything...either way, they’re both showing the same type of deficiency. any help is appreciated!!

Make sure your flood levels are reaching the roots

KryptoBud said:

Make sure your flood levels are reaching the roots

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they definitely are, i just think its odd that the plant with the rapid rooter that keeps moist is growing the most. i thought the rapid rooter staying wet/moist was bad because it could get me root rot

jronnn said:

they definitely are, i just think its odd that the plant with the rapid rooter that keeps moist is growing the most. i thought the rapid rooter staying wet/moist was bad because it could get me root rot

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Try hand watering from the top and if there's any improvement. What kind of water are you using?

KryptoBud said:

Try hand watering from the top and if there's any improvement. What kind of water are you using?

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thats what i was doing when i first transplanted then but i was watering the rapid rooter and overwatering them but I'm using tap. it comes out the faucet at around 100-120ppm and high 6, low 7 for PH. my nute solution total (including tap) is 300 ppm, so theres about 200ppm of maxigro in my 20gal reservoir

Hey guys new here and learning alot already. .got a few pics of my seedlings that i think were over watered. .does it look like it to you guys..I'll defer to your wisdom and any suggestions would be appreciated. .first time grower so not sure if im being a little overbearing..cheers

Potatosanchez said:

Hey guys new here and learning alot already. .got a few pics of my seedlings that i think were over watered. .does it look like it to you guys..I'll defer to your wisdom and any suggestions would be appreciated. .first time grower so not sure if im being a little overbearing..cheers

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id say from the bottom 2 pics it looks over watered like mine did, you can kind of tell from how full the leaves look full, you can like see the ridges between the plants leaves fully like almost stretching... atleast thats what the determining factor was for mine when i was overwatering how old are those? like what day did you first start germination the seed? and howling have they been sprouted?

jronnn said:

id say from the bottom 2 pics it looks over watered like mine did, you can kind of tell from how full the leaves look full, you can like see the ridges between the plants leaves fully like almost stretching... atleast thats what the determining factor was for mine when i was overwatering how old are those? like what day did you first start germination the seed? and howling have they been sprouted?

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Hey bud i paper towel plated them for around 48 hours and with a long root put them in jiffy cups 3 inches by 3inches where they sprouted quite quickly..but being a noob i did water them a bit too much when dry and they haven't grown much since..they're in a grow box i built under a 6400k grow light ..nothing else added

About 2 weeks old now..cheers