Hello I’m very new to growing 22 days new. I’m having some issues and not sure how to solve them. So I had PH issues the pen was broken. I was having what I felt was a slow grow. Long story short my gf buys me the bluelab ph soil pen and Ph pen because she saw a youtuber using one. And my Ph was off way off 4.3 4.8 5.3. Fix that and then I had heat issue for about a week or so . I was running 88-95 during the day and around 85 at night. Now I’m running in the 80-85 during the day and around mid to high 70s at night. So I fixed that. I gave more nitrogen and Calmag. But I’m not which way to go now.
Welcome to the forum @FLAW
Sounds like you have a good handle on the pH issues.
Changes to pH and nutrition will take time to see in the plant. Damage to leaves will not heal and you will need to watch the new growth to see if you are on track.
Be patient, keep the pH in range and start slow with the nutes if in soil.
Looks like coco so it should be around 5.5 to 5.8 and nute are needed from the beginning.
If soil shoot for 6.8
First of all welcome. PH is in the bag, the damaged leaves will stay damaged so nothing you can do there. How are your ppms looking. That would be my next place to look, no point in feeding if she’s maxed out.
Looks like we posted similar answers at the same time @Spiney_norman 
Great minds…LOL
Great minds indeed
Thanks for the reply bro. That is the new growth and thats why i was worried I was told to Ph around 6.5 was optimum and that’s where it’s been 6.3-6.5. And I’m using organic slow time release amendments.
Thanks. I have seen the charts for the Flora Trio but I haven’t read anything on the ppm for dry amendment
Theres a problem right away.
From what I’ve learned on here MJ and time release nutes usually end up badly. I would consider checking these out to make sure they’re MJ friendly