Beginner in need of diagnoses & advice

[Sleepydog707]

Hey everyone !

Just looking for some advice , recently 3 of my little ones in veg have started to make these very odd leaves. I won’t say its spreading but it almost seems to be. Originally only one had the issue but now all 3 have it to varying degrees. Living in Fox Farms Happy Frog, using the Flora-grow 3 for nutrients as-well as calmag.
P.h is usually around 6-7 , granted I only have paper strips to test.

Really appreciate any advice available !
You guys rock!!

 

[Nunyabiz]

Looks like calcium deficiency or too much potassium which can look similar.

 

[Sleepydog707]

Okay good to know , thank you for reaching out.
It had originally appeared before i got calmag , and i started treating recently , got its first taste of calmag last week.
I will continue to feed calmag accordingly and will potentially lower the amount of Potassium when i feed with the flora 3.