6 weeks from seed "The Doctor" health and growth queries

[dave motox]

Hi this is my first grow looking for a bit of advice, criticism and general opinion.....
So its 6 weeks old i did have some stretching issues in the first week so i know its not as tall as it could be, some of the leaves are curling up but new growth are good.
There is some brown spotting. I am growing in coco, ppm 450, ph 6.0, 25°C temp and 60% humidity under 125 watt enviro light. Any thoughts, problems or opinions greatly appreciated. thanks Dave.

 

[dave motox]

 

[Antics]

Welcome to

Usually the causes for margin rolling like that is too much light, Too much heat, Too much/Not enough water, or Nutrients are too strong.

Judging from the damage I see on the lower leaves, I would guess that perhaps the nutes you're using are a little strong. I'm not familiar with ppm readings, so perhaps another grower can help with that.

Here you'll find a TON of great information: How to Grow Marijuana Everything You Need to Know

 

[DEAN420]

How close is the light? The coco also looks to dry what's your watering schedule like.