I need help diagnosing a problem

[ManyClouds]

4th week of veg from seed, heat was an issue for a week but has been corrected as well as humidity.

82 avg temp 50% humidity
24/0 cycle
Co2 enriched
AN ferts and microbes at 8ml per gallon of distilled water every other watering.
Ph perfect blend so i was told not to even stick a pen in there? So idk what ph is at water but runoff is 6.3
Soiless medium
Two 600watt hps a/c

the genetics vary and is showing in all so it has to be me fucking up somewhere


I usually see this in flower but never in veg? Im getting very discouraged cause i cant identify the problem arising. Please any input will help.

 

[dimebag87]

if i had to say it looks like a combo of overfeeding and burn from your light. how close is it?

 

[SlayerHawk]

how many plants u got?..drop down to 18 hours on..no need for 24 unless ur sprouting..id say

 

[ManyClouds]

The lights are almost 20 inches away. I can definitely try 6ml next feeding. Should i cut off co2 during these issues or will that stress them even more?

 

[RIKNSTEIN]

The lights are almost 20 inches away. I can definitely try 6ml next feeding. Should i cut off co2 during these issues or will that stress them even more?

Are you feeding it all the time???? You should water-water-feed in first weeks of veg and then move it up as she gets older and then to feed-feed-water when she blooms, good luck

 

[curious2garden]

......snip...
Ph perfect blend so i was told not to even stick a pen in there? So idk what ph is at water but runoff is 6.3
Soiless medium

You've got your issue. Using soiless medium in a drain to waste setup is hydro. Hydro with a root buffer but hydro just the same. You have to provide all the nutrients in a readily digestible manner to the plant. If you are in coco then you need to pH your nutrient solution down to 5.5 (peat 5., AFTER adding everything.

Another thing is what the TDS or EC of your nutrient solution you are feeding? There could be some burn from that as well.
Anyway look at this post:
https://www.rollitup.org/marijuana-plant-problems/488004-guide-nutrient-deficiency-toxicity.html#post6648395
Enlarge the chart on the left.

I just want to say you did a VERY good job of presenting your issue and asking for help. You provided enough information and excellent pictures one even with out HPS. I wish everyone could present information like this it makes it easy to be of help and I like to help if I can. Now on that note I'm a newbie myself. I've got a couple harvests under my belt and am currently fixing to chop the third. So you may want to listen to the more experienced however you can not go wrong getting yourself a pH Pen and a TDS meter.

PS here's the pH meter and TDS meter I use. They are cheap and work well and if you drop one in a reservoir you don't cry like a girl (I am a girl so it's ok for me to cry like one :

pH meter
http://www.ebay.com/itm/Digital-Pocket-PH-Meter-Tester-Pen-LCD-Monitor-fr-Aquarium-Pool-Water-Laboratory-/271083391078?pt=LH_DefaultDomain_0&hash=item3f1dd44866

TDS meter
http://www.ebay.com/itm/HM-Digital-TDS-EZ-Meter-Tester-PPM-Solution-Comb-New-/270415161367?pt=LH_DefaultDomain_0&hash=item3ef5ffe817

I'm not recommending either seller just showing you what I use.

 

[curious2garden]

The lights are almost 20 inches away. I can definitely try 6ml next feeding. Should i cut off co2 during these issues or will that stress them even more?

Until you get the basics straightened out, like nutrients, CO2 won't help you much. I'm not even bothering to set it up until I can complete a run without stressing my plants with lights and nutrients. It doesn't really do much for you until then.

 

[ManyClouds]

You've got your issue. Using soiless medium in a drain to waste setup is hydro. Hydro with a root buffer but hydro just the same. You have to provide all the nutrients in a readily digestible manner to the plant. If you are in coco then you need to pH your nutrient solution down to 5.5 (peat 5., AFTER adding everything.

Another thing is what the TDS or EC of your nutrient solution you are feeding? There could be some burn from that as well.
Anyway look at this post:
https://www.rollitup.org/marijuana-plant-problems/488004-guide-nutrient-deficiency-toxicity.html#post6648395
Enlarge the chart on the left.

I just want to say you did a VERY good job of presenting your issue and asking for help. You provided enough information and excellent pictures one even with out HPS. I wish everyone could present information like this it makes it easy to be of help and I like to help if I can. Now on that note I'm a newbie myself. I've got a couple harvests under my belt and am currently fixing to chop the third. So you may want to listen to the more experienced however you can not go wrong getting yourself a pH Pen and a TDS meter.

PS here's the pH meter and TDS meter I use. They are cheap and work well and if you drop one in a reservoir you don't cry like a girl (I am a girl so it's ok for me to cry like one :

pH meter
http://www.ebay.com/itm/Digital-Pocket-PH-Meter-Tester-Pen-LCD-Monitor-fr-Aquarium-Pool-Water-Laboratory-/271083391078?pt=LH_DefaultDomain_0&hash=item3f1dd44866

TDS meter
http://www.ebay.com/itm/HM-Digital-TDS-EZ-Meter-Tester-PPM-Solution-Comb-New-/270415161367?pt=LH_DefaultDomain_0&hash=item3ef5ffe817

I'm not recommending either seller just showing you what I use.

so is ph and or the fluctuation of it the main culprit? The ph after adding part a & b of sensi bloom was 5.6. So im having a hard time knowing if its a toxicity or what? They havent had many feedings and they are getting water feed water feed.
Do I ph the plain water? Its 7.0?

 

[ManyClouds]

What do I do now? Things look worse. I fed using 1/3 of what i was using before this issue. How do i stop it from getting worse? I know the damaged leaves are irreversible but it is progressing until the leaf is dead. This is bullshit cause i have had this happen twice already in flower and now its in veg WTF. I ph'd the nutes and always fed at 50% recommended dosage i am trying to figure out what im doing wrong and i cant get it figured out. Help help help please.

 

[Scrotie Mcboogerballs]

Are you using RO water?

 

[ManyClouds]

Are you using RO water?

Yes started using distilled this run until i buy the r/o home system next run. I think i pinned it. The 8mL i used was okay until the traces got added in there at that amount as well. I need to scale waaaay back according to my calculations. 2mL per liter is suggested (2mlx3.785=7.57ml) and i should be doing half of that for the traces so i read. I think these guys at the shop are stupid for recommending that schedule to me. Im stupid for not paying more attention to detail as well. The sheet looked legit so i took their word for it since i am new to AN. So next feeding they get a good npk feeding and little to no trace element feeding? Any advice?