90cody
Active Member
Light: 400watt MH 6" cool tube
Fan: 6" Inline fan 400cfm
Tent: 5x5x6.5
Temp: 72-85
Humidity: 40-80
Fetilizer: Fox farms Advanced Nutes
Setup: DWC
ph: 5.2-5.9
EC: about 2.0 (going to flush as soon as i get new pH meter since the one i had broke)
Media: Rockrool / Hydroton
Strain: Ice
To my question. I have done hours of research, my first diagonosis was magnesius def so i give epsom salt starting at 1 tsp per gal. then moved up to about 3/4 of tbl per gal after about 3 days of it getting worse..
after more research it looked to be a possible calcium def so i applied garden lime, although it is still progressing.. as soon as i get my pH meter i will flush and add new nutes. i just know if i do it now it will only get worse without knowing exactly what the pH is
stage one: branches turn purple
stage two: tiny rust brown spots randomly starting at center tip moving through center of bottom oldest fan leaves progressing up. (leaves curling upward)
stage three: brown rust spots taking over most of the bottom leaf, no yellowing around brown spot
stage four: bottom oldest leaves start turning yellow at tips and what also looks like necrosis in center of older leaves.
at this point i cut off the older fan leaves and the set above them are in stage three, i assure you i have looked at every single plant disease pest disease picture and text site, so while appreciated to give a link regarding one of those top sites i have most likely seen it.
i have yet to see a picture to look identical to my problem. it almost seems like a generator problem, none the less i dont have one. any input would be appreciated, i will be doing a flush with foxfarms sledgehammer flush as soon as i get my Hannah pH meter in..
This is my first grow, so apreciate any advice.
-cody
Fan: 6" Inline fan 400cfm
Tent: 5x5x6.5
Temp: 72-85
Humidity: 40-80
Fetilizer: Fox farms Advanced Nutes
Setup: DWC
ph: 5.2-5.9
EC: about 2.0 (going to flush as soon as i get new pH meter since the one i had broke)
Media: Rockrool / Hydroton
Strain: Ice
To my question. I have done hours of research, my first diagonosis was magnesius def so i give epsom salt starting at 1 tsp per gal. then moved up to about 3/4 of tbl per gal after about 3 days of it getting worse..
after more research it looked to be a possible calcium def so i applied garden lime, although it is still progressing.. as soon as i get my pH meter i will flush and add new nutes. i just know if i do it now it will only get worse without knowing exactly what the pH is
stage one: branches turn purple
stage two: tiny rust brown spots randomly starting at center tip moving through center of bottom oldest fan leaves progressing up. (leaves curling upward)
stage three: brown rust spots taking over most of the bottom leaf, no yellowing around brown spot
stage four: bottom oldest leaves start turning yellow at tips and what also looks like necrosis in center of older leaves.
at this point i cut off the older fan leaves and the set above them are in stage three, i assure you i have looked at every single plant disease pest disease picture and text site, so while appreciated to give a link regarding one of those top sites i have most likely seen it.
i have yet to see a picture to look identical to my problem. it almost seems like a generator problem, none the less i dont have one. any input would be appreciated, i will be doing a flush with foxfarms sledgehammer flush as soon as i get my Hannah pH meter in..
This is my first grow, so apreciate any advice.
-cody
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