Help with new strain issues

[jjtrain]

Hi so I've been growing gg4 for about two years and some seeds along the way. I have two tiger cake strains that have leaf curl that none of the other plants have or that I've ever seen. Hoping someone can help diagnose the issue. I have around 65 plants in my garden and only these two have this problem. I'm in week 2 flower

Light source : 1000w gavita @ 100%
Medium : soil
Feed : general hydroponics, Ph 6.2-6.5
Humidity : 55%
Temp : 28-28

 

[Porky1982]

pH is low for soil and they look like they have a bit to much N.
Soil pH should be 6.5 to 7.5

 

[Eclipted]

I’m not disagreeing with porky but do you research for sure most soil needs to be at 6-7 ph soil acts as a natural buffer too meaning if you pour water in that’s isn’t ph the soil should buffer it to where it needs to be. Nitrogen does look a little high, and every single strain is different don’t forget that. Some may just be predisposed to certain ailments. I’m a newbie so I’m not sure but it kinda seems like some heat or light stress to me?

 

[Trash_2002]

Overfeed of Nitrogen, funny enough my gg4's last year did the same not even close to that severe but still some N over clawing, they are low feeders.

 

[3cats]

Hi so I've been growing gg4 for about two years and some seeds along the way. I have two tiger cake strains that have leaf curl that none of the other plants have or that I've ever seen. Hoping someone can help diagnose the issue. I have around 65 plants in my garden and only these two have this problem. I'm in week 2 flower

Light source : 1000w gavita @ 100%
Medium : soil
Feed : general hydroponics, Ph 6.2-6.5
Humidity : 55%
Temp : 28-28

You could have over fed bloom nutes or added too much of them too early. Adding cal/mag too early when not needed can lock it up. GG4 can be a heavy feeder where as the Tiger Cake might not need as much so early. 100% on your light is too high imho I start flower at around 60% then as I feed more and the plant stretches I bump the light about 5% per week. I had been aiming at 4 weeks to have my light at 100% when they get max feed but I've recently learned I should aim for closer to 6 weeks to be at max power & max feed.

I use GH trio + Flurolicious Plus in soil and I only add cal mag starting week 3 of flower. I go by this chart for my feed. I use my basic nutes until this chart directs me to add what it needs and I've stretched the time period to 10 weeks.