Yellow leafs rising up the plant and falling off my outdoor

I'm thinking overwatering or ph fluctuation with my reservoir? I was watering with my hose with 300+ ppm, maybe a lockout from that?? Used a lot of ocean forest and pro mix, 707 and organic compost. Ph probes are giving me roughly 7.0 all around. Not sure if that's a malfunction or? Starts on bottom and rises thru plant dropping leafs and making it look hollow and scrawny. Got a little rain today which seems to have given me some time. The leaf pictures are off my big girls and the whole plant pictures are off my little extras I had but they are doing the same thing but get watered far less which makes me think it's not and over/under watering issue. SOS, any ideas are greatly appreciated, thanks

I just had similar issues, im no pro grower but my plants looked great dark green leaves then they started to flower and looked similar to your plants. I added some npk industries raw potassium and their phosphorus with my water phd to 6.5 and they are back to regular programming.

Did they thicken back out at all or just fix color? And how much did you add and how often?

Michiganmike said:

Did they thicken back out at all or just fix color? And how much did you add and how often?

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. I have a small bag of potassium and phosphorus bc they have all the npk you need in them. It takes the smallest amount with raw. 1/8 a teaspoon per gallon and 1/4 teaspoon per gallon around about. It tells you a minimum to a maximum. You can try low or in the middle. Or even full dose if you feel. And i can use it for a specific deficiency. I gave it to them they started to darken up so i gave them a light strip down defoliation and they exploded! It gives you a range on the back of the bag per gallon.

Plant won't fix its color once you treat. Look for life in new growth. Once its yellow, its yellow for life until it crisps up and dies off. Eventually.

I'm going to call this one Nitrogen deficiency. Starts at bottom yellowing leaves that fall and goes upward. Definitely sounds like Nitro def to me.