i need help i have a problem.with pictures.

[Marijuana4life]

edit: strains are abusive og kush(2 plants) and platinum og kush(4 plants) 1 bubba kush.
info about my grow

light: 400watts hps hortilux,bulb is 15 inch away from the plants, i also took the glass from my reflector.

stage: veg, 5 weeks from clone , they are about 14".

Growing medium: soil 60%,worm castings 10%, bat guano 5%, cow manure 20%, humic fulvic and amino acids 5%.

Nutrients: bat guano, worm castings, humic acid, fulvic acid, amino acids, sea weed kelp, cow. im making teas and feeding the plants one time a week, i been foliage feeding them with for about 2 weeks, i always wash nutes after 30 minutes. oh and i always use tap water and never let it sit for a day ;(.

temperature: its always at around 60-80, and i have 2 16" fans blowing directly at the plants..

i think my problem is related to the ozone generator i was using before, i left it on for about 3 hours in the growing room later that day someone told me it was bad for plants and i stopped using it. any advice would be appreciated this is my first grow,thanks in advance.

[Marijuana4life]

What type of medium; soil or hydro? soil
What brand and type of soil?
Indoors or outdoors? indoor
What strain?
How old are the plants? 5 weeks
What type of lights and how many watts? hps 430watts
How far from the lights?
What is your watering frequency and source of water? every 3-4 days, straight from the hose.
What, how much and when was it fed? NPK? organc nutrients 8 days ago
What is the medium/runoff pH and PPM if in hydro? ph 6.6 i dotn know about ppm.
What are the temps and humidity in the room?temp 60-80, humidity 30%.
What size pots? 1 gallon grow bags
Any bugs? no bugs, i had a problem with bugs(spidermites) but i bought some stuff at walmart and they are gone, they been healthy with no bugs for 4 weeks.
Any other pertinent info? i used ozone generator in the growing room.

[janemba]

yeah ozone is bad for plants it destroys cell membranes, the purple stems and vains, also dark bloches, is because its getting to cold in ur garden when the lights are off, causing a phosphorus lock-out, the temp should be in the highg 60's to 70's when the lights off and 76-80 78 being ideal when lights on.
as far as the leaf getting destroyed and the necrosis (death spots) thats caused by pest the huge bite marks missing out of ur leaves are probably caterpillars (green horn worms) i got them once and there really hard to spot took me 30 mins of looking around a 3' plant to find 3 of them. also pest will cause stress causing nutrient lock-out thats y ur seeing yellowing.
heres a post i did on pest, oh and u could benefit getting the humidity to 50%
http://forum.grasscity.com/advanced-...t-insects.html
other then that there pretty healthy good job

[Marijuana4life]

i just check the ph of the water i use and its 7+.

[janemba]

use 6.8 to high or to low can also cause lock out

[Marijuana4life]

Originally Posted by janemba

use 6.8 to high or to low can also cause lock out

yeah, i think thats my problem, thanks!.