Having a Really Hard Time

[Flyinghigh]

IMO you need to let it air out and then test pH of the soil if its ok then go back to 1/4 or 1/2 strength feedings. But you ahve to be sure that the soil is aired out before youwater again the top couple of inches will always seem dry. eg i transplanted mine over a week ago and my soil is still damp on a scale of 1(low) to 10 (high) my meter sits on 6 as of 10 mins ago. so that says i still have a day or so with the lights on before i have the need to water again.

Also, it was said in here that your lights should be between 36" and 48" off your plants thats way far off of them for a 400W HPS i have 2 400W lamps and they are never more than 10" off them, HPS lumen and distance chart id say so long as the heat isnt that bad on the tops you can drop it down to them a bit more. to knwo if its too hot for the plant use the back of your hand hold it just above the canopy and stay for one minuet if your hand gets too hot then its too hot for the plants. if not you good to grow.

Thanks
Hay Dubb, just wondering if u got another pix that alittle bigger? I want to copy it..
So the further the light is the less lumin there is ! Wow having them to close would be alot of lumin for a 400 HPS.. But burn it up though..

 

[Hick]

A 400 with an air cooled light can be very close to the light. That is not your problem. Maybe ph could be lower. maybe temp. need more parameters

" pH of plants are 6.5"... according to the information that "I" have, dropping below 6.5 ph start to lock out P, mg, and Ca. The only benefits of lower ph, might allow more iron and manganese to be accepted.
An "aircooled" hood CAN be placed very close, but I don't see that he has stated that is what he has. The temperature and ventilation, are the only factors that will determine "how" close any light can be. As always, the closer, more direct, the better.. WITHOUT exceeding acceptable temps at plant canopy.
There are two methods of lowering your temp's, more ventilation and move the source further away.

I'm actually leaning toward closets diagnosis on this one, at this point... ie. "pot size", supa'thrive, or heat stress.
A more thorough description of your grow, would help, ph of your runoff, and your tap water, tepmeratures, ventilation, ect.

 

[bigweedo]

My pots are 4 gallon square pots. I took the pH of the runoff a week ago and it was 6.4 and 6.5 in some plants. The temps have been a little low about a two weeks ago in the high 60's, but it is now from 75-83 and the humidity runs from 50-60 here and there. Ventilation is i keep the door to the closet open with a fan blowing fresh air into the closet.

Over watering? I am letting them dry out, and will take the pH of the runoff. Anybody else want me to do something so it can help with their decision?

 

[Hick]

hmmmmm...the environment sounds pretty good...

 

[Dubbaman]

Thanks
Hay Dubb, just wondering if u got another pix that alittle bigger? I want to copy it..
So the further the light is the less lumin there is ! Wow having them to close would be alot of lumin for a 400 HPS.. But burn it up though..

if you click om that one it will enlarge too, or it can be resized in window on the bottom right corner where it says 100% click that and choose a size oh and thats number isnt how many lumen you plant is getting thats how many footcandles (how bright) its geting at that distance. Its also soundsing liek you may be getting a few things back on the right track give it some time and see. It always take a few days to see any changes in plants when its and envirinment factor thats changed.