Yellowing outside of leaves?

Hey there, my bug growth seems to have stopped, or I could just be inpatient.
Growing auto ultimate by Dutch passion

PH is generally between 6.5 and 5.5, closer to the middle most of the time though

Using all shogun nutes.
Honestly don't know what ratio of nutes I should mix as my water ppm is around 270.
So been giving full strength calmag, with half strength base nutes. With full strength boost.
Calmag 1ml per litre
Coco a and b 0.5m per litre
And boost 1m per litre

Growing in canna Coco pro plus

Hand watering once per day to runoff

Growing in a 1.2m x 1.2m tent with 6 100w migro cob lights

Here's a few piks, any help would be appreciated. Thanks X

too much calcium locking out your phosphorus is my humble opinion

gazza89 said:

PH is generally between 6.5 and 5.5, closer to the middle most of the time though

Honestly don't know what ratio of nutes I should mix as my water ppm is around 270.
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Your source water is around 270ppm or this is with nutes?
Are you adjusting for pH or is your nute solution naturally 5.5 to 6.5 after you mix?