Is there a doctor In the house?

[Kage87]

Newbie here first time...having some problems and the ladies are looking unhappy to be alive and living with me despite all the love and care they get...

Setup

18/6 light cycle
32in x 32in x 63in grow tent
Promix hp growing medium
190 cfm ventech exhaust and carbon filter
900w viparspectra led (bloom/veg on) 32" height above canopy
Complete remo nutrient line (water/feed/water/feed cycle)
Have been sprayed with rhizotonic for last week
2x 6inch fans running on low pointed at both plants
Using gh ph strips and getting close to 6.0 that I can..buying oakton ph2+ next week
Temp in tent hovers 75-79 with lights on 68-70 lights off
Plants:
Left..jack herer from seeding (small pot)
Right..og kush from clone (3 gallon smart pot)

Problems:
Yellow leaves at bottom of plant
General droopyness
Jack herer has papery leaves
Og leaves have a slight taco to them
Red stems on old growths none on new growths both plants

Any pointers and course of action I can take...like I said first timer and really disappointed need to get these girls in shape fast..pics attached

 

[ColoradoHighGrower]

What's your soil mix? Upload some photos in normal lighting!!!

Your RH appears to be low based on the humidistat reading, and some leaves have upturned/dry edges. Adjust to 55-60% for veg, lower to ~45-50% in bloom.

Also ph is perhaps a bit low, increase to 6.5 and give them a good watering after they dry out and look thirsty. Tacoing and that pillowy look to the leaves is often a ph issue.

Don't worry about the lower yellowing leaves for now, but looks like possible slight N deficiency (although all other growth looks okay ?) Thin papery leaves is a symptom of something else, but can't recall what at the moment. Calcium? Anyone?

Purple stems are usualy Mg deficiency. Are you give them Cal-Mag or epsom salt when feeding? What nutrients do you use??

 

[Kage87]

Promix hp growing medium
Remo nutrients ( grow, micro, magnifical, kelp, and nature candy ..recommended 6mg/g using 1.5-2mg/g)

 

[Kage87]

What's your soil mix? Upload some photos in normal lighting!!!

Your RH appears to be low based on the humidistat reading, and some leaves have upturned/dry edges. Adjust to 55-60% for veg, lower to ~45-50% in bloom.

Also ph is perhaps a bit low, increase to 6.5 and give them a good watering after they dry out and look thirsty. Tacoing and that pillowy look to the leaves is often a ph issue.

Don't worry about the lower yellowing leaves for now, but looks like possible slight N deficiency (although all other growth looks okay ?) Thin papery leaves is a symptom of something else, but can't recall what at the moment. Calcium? Anyone?

Purple stems are usualy Mg deficiency. Are you give them Cal-Mag or epsom salt when feeding? What nutrients do you use??

Ladies need they're sleep ..wake up in 2.5 hours can post in normal light then but anything else I can look at right away?

 

[ColoradoHighGrower]

Just get your RH up first, for now. With low RH, they will transpire faster/want to take up water faster, so any PH or nute issues will get taken up faster and potentially piss em' off faster too... then adjust PH up a bit in next watering and see how they do before adjusting nutes at all.

 

[cjsbabygirl313]

Also, if I remember correcrly, fans shouldn’t be blowing directly ON the plants

 

[Viceman666]

Dont quote me.. but droopy leaves first thing id check is what your watering schedule looks like.. do you allow enough time between watering? Plants love dry and wet cycles..your issue could be overwatering or not enough but you would know better.. how heavy is the pot? There should be a significative difference in weight between wet after watering and when its dry..

if your watering is good.. then look in possible nitrogen toxicity.. hard to tell with blurple lights but could be another reason why its only affecting lower leaves.. they dont need much nutes at that age so id cut down your dosage maybe even ph water only for 1-2 watering just to let everything get back on track..

Overall they dont look terrible at this point. My best recommandation is dont try a million different things at the same time it may cause other issues that you didnt have initially keep it simple and allow a few days 2-3 at least in between experiment to let your plants time to catch up and see if they are doing better..

Finally at this point id cut the leaves that are burned at the bottom they are pretty useless at this point..