What's wrong with my White Widow?

White Widow, of course.
Soil, Fox Farm.
Still in veg, planning on flipping in 3 days.
75 days old today.
Nutrients-General Hydrophobics
I apply nutrients every 3rd watering (example. Water, water, nutrients)
I ph at 6.5 or there about
She's been topped 2 times
Some Lst'ing
Container-5 gallon Home Depot bucket (but not completely 5 gallons. I cut the bucket down, 10 inches from bottom)
LED light- Nextlight Mega, 650 watt
Light about 36 inches from canopy
Pics are attached

Looks like a calcium and magnesium deficiency. I am not an expert.

Thanks LeatherLungs,
I kinda thought the same but wanted to get other opinions. So, you think I ort to incorporate some cal-mag to my nutrient feed next feed day or should I feed some cal-mag now?

Magnesium deficiency is a good thought, if that doesn't improve the situation try washing out your plants with pure water for a week to make sure you don't have too many nutrients built up in the soil.

Thanks BudGrowGuide,
When I water, I use a half of gallon of ph'ed water, when I feed, I feed with General Hydrophobics Trio (forgot to mention that in the post). I can definitely see where they would be nutrient build up, for sure. So you think I should go with water maybe with 3/4 of a gallon of Water? The rest of my girls don't look like the WW. As you can see from the attached picture.

BuzzDaddy said:

Thanks BudGrowGuide,
When I water, I use a half of gallon of ph'ed water, when I feed, I feed with General Hydrophobics Trio (forgot to mention that in the post). I can definitely see where they would be nutrient build up, for sure. So you think I should go with water maybe with 3/4 of a gallon of Water? The rest of my girls don't look like the WW. As you can see from the attached picture. View attachment 4047190

Click to expand...

5x the volume of the pot should leech it good. If that's what you want to do. I wouldn't...

I would add 1g per gallon of magnesium sulfate to feed or mist Ca Mg 2x a week for a week and watch new growth for a change.

Thanks Cx2H. All I have at the moment is Dyna-Pro Mag-Pro. She's needing watering tonight. Can I give her about 1ml of Mag-Pro with a half gallon of water or say 1/2 tsp of Mag-Pro to 1 gallon of Water? What do you guys think? Thanks again for the help.

Cx2H said:

5x the volume of the pot should leech it good. If that's what you want to do. I wouldn't...

I would add 1g per gallon of magnesium sulfate to feed or mist Ca Mg 2x a week for a week and watch new growth for a change.

Click to expand...

I just went ahead and plain ph'ed watered the WW girl. Waited a while to see if you'd answer. I'll do more research on this Mag-Pro and my situation. Hopefully i can get her back on track.

BuzzDaddy said:

I just went ahead and plain ph'ed watered the WW girl. Waited a while to see if you'd answer. I'll do more research on this Mag-Pro and my situation. Hopefully i can get her back on track.

Click to expand...

Sorry. Epsom salts or what you have is fine as well.

Try the magnesium, but I have a suspicion these were exposed to too much nitrogen earlier, looks like they were very green.
This can lead to calcium (brown spots)and manganese lockout.
Looks like you are still in veg, so just dial back the nutes for a week or so and see what the new growth does.

Yes, ANC. Early on they were super green and I think suffered from nitrogen toxicity. I'm just plain PH'ing for right now and see what happens. I actually checked the run off tonight and it came out with 6.3 so I maybe back on track. Another question, I was planning on putting my girls in flowering 12/12 in 3 days, Sunday, would it be ok to do that or should I keep in veg a while longer? They are about 10 weeks of age now.