Some plant problems...

[MaxTrichomes]

Hiya .. dude I do not have any such equipment friend, just outdoors and 20W cfl for seedling starters when smell is not an issue.

I did find this:
I spotted this:

"Most nutrients will cause a Ph change in the soil. Adding fertiliser to the soil often results in a lower, more acidic Ph. As time goes by, the amount of salts produced by the breakdown of nutrients in the soil causes the soil to become increasingly acidic and eventually the concentration of these salts in the soil will hurt the plant, effecting production and destroying the leaves."

Seems like it explains whats going down.... well I keep learning !

 

[Muddy]

So checked soil pH and it is 6.5 I take that it's a little too acid so I have watered again with powdered calcium in the water to bring it up. Well I can only live in hope now.

A pH of 6.5 is fine. The 6.9 that you started out with was too high. Ideally, you want to be in the 6.3 - 6.5 range. MJ likes the soil to be a bit acid. Calcium will raise the ppm of your feed, but will have little effect on the pH.

Hiya .. dude I do not have any such equipment friend, just outdoors and 20W cfl for seedling starters when smell is not an issue.

I did find this:
I spotted this:

"Most nutrients will cause a Ph change in the soil. Adding fertiliser to the soil often results in a lower, more acidic Ph. As time goes by, the amount of salts produced by the breakdown of nutrients in the soil causes the soil to become increasingly acidic and eventually the concentration of these salts in the soil will hurt the plant, effecting production and destroying the leaves."

Seems like it explains whats going down.... well I keep learning !

Yes, salt build up can cause issues. When you feed them, do you give enough so that about 10% runs out the bottom? Also, being outdoors, I expect they have been subject to some rain? Usually outdoor plants are less likely to suffer salt build up as the rains will usually keep them flushed.

Since your pH is good, I think you can rule out a nutrient lockout. I'd suggest you increase the amount of P and K you are feeding, and throw in some epsom salts for some extra magnesium. 1 tablespoon per gallon of feed.

 

[MaxTrichomes]

Ok thanks, no rain though I try and bring them in or GH them.