Deficiencies?

I'm growing 2 black jacks under a 250W hps light. One is in soil(green plastic pot) and one is in perlite/vermiculite (clay pot). I feed them miracle grow tomato (18-18-21 plant food probably about every 2 or 3 days. My plants are about 4 weeks old, and I am keep thinking that they have some Cu, Zn and Mg deficiencies, but I think I might be paranoid, so I'm asking for a second opinion. If you know anything about growing this strain that would be helpful if you posted any general or specific info about it.

it looks like you have over watering issues to me, and probably some toxicity issues. A deficiency will usualy show as a change in color within the leaf foliage. in your case, your leafs are green, but not healthy looking. id flush them good, let them dry out, and then start feeding at half strength

they look good couple spots not much some red/puprle stems what kind of water are you using and turn the top soil alittle may need a little air

Flushed my plants good and they drooped, so I'll just wait it out and post back if I have issues after feeding half strength nutes (maybe a week from now).

Found some new problems to be annoyed at (curling leaves and light green coloring on leaves and in one case something that looks like a scrape). Fixes and opinions welcome.

more pics also, which of these two nutes would you use?

your feeding your plants at 4 days old?well there is your problem wait atleast 2-3 weeks.u have probly locked out some of the nutrients by using your fertilzer so early not 2 mentions it has 2 much patassium which in itself is a disaster becuase that will lock out calcium then when calcium is locked out some else will be etc.

These plants are about 5 weeks old, one is in perlite/vermiculite, so I fed it light fertilizer as recommended on the bottle. The one in soil was fed nothing until 2 weeks old and even that was a small amount. They started to show toxicity issues at about 2-3 weeks, turning dark green and feeling like sandpaper. They perked up a bit after being flushed, but the drooped down a little bit and the tips curled under and the edges turned a lighter green than the rest of the leaf.

looks water logged and burnt all in one, but you've still got growth so its not likely lockout.
Grab them some seltzer water and adjust the PH before you give it to them, get 2 or 3 per plant and use it for a flush, then cut back your watering schedule and creep them back onto their food. If thats the blue concentrated stuff in the granules you just need to dilute it more and feed them less often for another couple weeks

Overall the plants look much healthier, but now at half nutrients and in flowering for about 2 weeks at 10/14 one plant is curling in and the other one has yellow discoloration in some of the tips. Diagnosis? solution? and ideas pertaining to this would be helpful.

looks like nute burn to me

n4alpaca said:

Overall the plants look much healthier, but now at half nutrients and in flowering for about 2 weeks at 10/14 one plant is curling in and the other one has yellow discoloration in some of the tips. Diagnosis? solution? and ideas pertaining to this would be helpful.
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Flushed with 2 time pot volume and problem remains

You've over wattered them and the ph is off. are you ph'ing your water before you flush? i've done a black jack grow the strain is tough and fucking chronic you are doing something to cause these problems.

what should the pH be? I've read many different opinions

My pH is at about 6.3. I don't have the money to buy pH up and down. How should I lower my pH?

n4alpaca said:

My pH is at about 6.3. I don't have the money to buy pH up and down. How should I lower my pH?

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i've read you can do it with lime juice although i have never personally done it. just google it and i imagine you will get all sorts of solutions.

Well here are my plants right now, when do you think they will start to form some bud?
Is it too late to plant some blackjack plants outside?

The base fan leaves weren't like this 2 days ago, the plant will probs be producing bud soon, but seriously... what happened biochemically (if you can explain using bio lingo) to cause this light discoloration. If it's relevant I caused serious toxicity issues during these leave growth, so I assume that has something to do with it.

I only used miracle gro for tomato plants twice. There is very little soil in this medium, and the soil that is in the pot has no nutrients in it. I used alaska bloom nutes about 2 days ago, but the discoloration is just on those two sets of leaves. Also thank you for telling me that my plants are fucked up, and thank you for reading the very first post in which I tell you what medium I'm using... On the other hand it could still be a pH issue that I tried and am still trying to fix.