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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).

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...

I think maybe I'll just start over with the plant that looks messed up I'll see how it plays out in soil, but we are in agreement that the other plant is fine right?

Here we are 3 days later. I'm a little concerned about plant two's leaves, One seems to be dead/ not growing/ the tip is dead and the other one has spots on it. Thoughts? Combination of Mn and Mg deficiency maybe?

was looking for a fertilizer that has these at a hydro store, but I am unable to find one that has all of the micros... also the air is about 23C without the light shining on them, so I'm not really worried about the temp.

After flushing my systems I got new nutes (http://www.americanagritech.com/fertilizers/pure-blend-pro/pure-blend-pro-grow). maybe this will do the trick, now to sit and wait a while

ok, thanks I will be getting a new fertilizer today an will post results as soon as I see improvement... or (hopefully not) massive failure.

do you know of any specific fertilizers that contain the important micros?

What do you mean by normal fertilizer?

I have some 0-10-10 also, would it be ok if I just mixed that in too in addition to the 8-0-0 after the flush? There is some soil, it's something for the roots to grab onto, not sure if I needed it, but perlite and vermiculite seem awfully insubstantial by themselves. I will check with litmus paper.

I don't know the EC of the nutes how would the soil leech nutes out of the roots if i sprayed the soil? (specs here, but no EC) Provided this were the case, how would I fix it? one is in a plastic planter, one is in a clay pot. I'm trying to grow blackjack in 2 vermiculite 1 perlite and 1...

This is my first grow (indoors with a 250 W hps on a 18/6 schedule) and I'm using a combination of vermiculite/perlite for my 2 seedlings, but I have seen no change in their growth over the past 2 or 3 days and it worries me. I put the seedlings straight into the main pot after I germinated...

If this thing could pick up a 12v fan they would probably pick up a shit ton of pc fans... scary thought that they could detect the frequency of air rushing through a vent though... Guess that's what damping is hopefully for. :\

going to a hydro shop tomorrow, How many plants would fit in a 2x2 space growing scrog. Does 5 sound about right?

thanks for the responses, I was going to build my own ballast and buy a hortilux bulb and ignitor, and wire it to a socket, either that or I find stuff on craigs list, either way this is a poorman's project. I'm not going to spend more than $120 ($7 for box 50 for bulb $20 for nutrients and...

these have been really helpful, but the thing is i'm trying to create a box (ventilated and painted for reflection) in which to scog grow (decided to scrog instead of single plant) and the dimensions will be 2x2x4, so 400w may be too much in terms of heat. As for ballasts, I thought you could...

I am going to start my first grow soon and I have most of the details figured out, but lighting seems to be disputed over so, In your opinion, which brand of hps have you seen the best growth with and is one 250W hps enough for one 55-65cm plant?