Major Issues with Plant Size

IrishDoc

IrishDoc

Well-Known Member
I am using a custom built box where the system sprays water/nutrients from beneath the plants onto 3" net pots 3 times a day. I have an airator installed in the box and zero light admittance to the roots. I am also using cfl 150w equiv. bulbs, 12 for an area that is 2.5ft x 1.5ft that are about 3-4 inches off the tops of the plants. My room temp stays around 78F and the humidity around 42% (I am trying to get it lower).

Now that i have given you the basics of my setup here is my problem. Most of my seedlings grow to approximately 4 inches tall with only 1 set of fan leaves and then begin to start :fire:dieing.:fire: I have been testing my pH and keeping it to around 5.7, I have an ECT tester but to be quite honest I am not 100% sure on what my water/nutrient level should be on the read-out. The nutrient I am using is GH 3-part system.

:wall:If anybody has any ideas of what I am doing wrong please tell me.:wall:
 
super2200

super2200

Well-Known Member
IrishDoc said:
I am using a custom built box where the system sprays water/nutrients from beneath the plants onto 3" net pots 3 times a day. I have an airator installed in the box and zero light admittance to the roots. I am also using cfl 150w equiv. bulbs, 12 for an area that is 2.5ft x 1.5ft that are about 3-4 inches off the tops of the plants. My room temp stays around 78F and the humidity around 42% (I am trying to get it lower).

Now that i have given you the basics of my setup here is my problem. Most of my seedlings grow to approximately 4 inches tall with only 1 set of fan leaves and then begin to start :fire:dieing.:fire: I have been testing my pH and keeping it to around 5.7, I have an ECT tester but to be quite honest I am not 100% sure on what my water/nutrient level should be on the read-out. The nutrient I am using is GH 3-part system.

:wall:If anybody has any ideas of what I am doing wrong please tell me.:wall:
Click to expand...
you may be feeding too soon maybe, when you say they die what do they look like? Burned leaves? yellow? Are they dying just after introducing the nutes or are you changing the water and then plants die?
 
IrishDoc

IrishDoc

Well-Known Member
super2200 said:
you may be feeding too soon maybe, when you say they die what do they look like? Burned leaves? yellow? Are they dying just after introducing the nutes or are you changing the water and then plants die?
Click to expand...
They just gradually fall over and dry up, like they haven't gotten water; EVER. Give me a few minutes and I will post some pics.
 
J

johnny12r

Well-Known Member
do they get to dry i keep having the same problem but i've done it fine before with the same stuff .also try no nutes for a while . nutes killed 20 of my seedlings even at half strength
 
J

johnny12r

Well-Known Member
on mine the stems just turned to rubber one day they all fell over and died.now i have a fan on them on low from 4-6 feet away no nutes and they seem fine.
 
ENGLAND123

ENGLAND123

Well-Known Member
for starters dont have the fan blowing onto the plants as that could be you problem! also: wot soil are you using for seedling stage? dont feed till in @ least 3 week of VEG - check ph of soil and water - hope this helps :D
 
ENGLAND123

ENGLAND123

Well-Known Member
just seen ur new post of the pics! how far is ur light cos its WAY TO FAR GOING OFF THOSE PICS - U WANT THE LIGHT LIKE 2'' FROM TOPS OF THE PLANTS - THEY LOOK TOO MUCH STRETCHED TO ME - U HAVE TO ADDRESS THE LIGHT PROBLEM ASAP
 
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