Daiquiri lime lower leaves yellowing

Here’s an example of what I’m seeing today (3 plants in the picture). The yellow circle is highlighting some rusty spots from a few weeks ago when this plant hit flower and I hadn’t been paying attention, so the P def got a bit more advanced but once I increased the bloom nutes no more leaves above or below this level got affected (also it was only on leaves on colas if supercropped- guess they needed more P to help repair the breaks I made).
The red circle shows where my leaf stems have started going purple on the lady that is about a week behind the one with the yellow circle. Ok it could be an Mg def, but I’m not seeing any other signs of that, and as she is really starting to grow her buds I’m assuming more P is needed so her bloom feeds have gone up. We’ll see in a few days if the purple subsides a bit.
The green circle is sort of to show that plant is quite dark compared to the other 2 but it doesn’t look it in the photo. She’s been getting the same feeds as the other 2 but feels a bit like she’s getting N heavy so I’ve cut her grow nutes completely at the moment she just gets calmag, algamic, topmax and bloom
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Yes I look at my plants and, for example, if I see the leaf tips starting to burn I lower the calmag or just water with plain ph’d water for a couple of days until new growth isn’t showing any symptoms. same if I see the leaves are getting quite dark indicating an N build up, I lower my grow nutes. When flowering starts I usually see the first signs of P def (purple leaf stems, and maybe some rust spots- I know these can indicate other things too) so I start ramping up my bloom nutes.
I use biobizz products, I rarely follow their exact feeding schedules, I try and read what the plants are telling me. I’m in no way an expert, only been growing for a year, but I’ve not had any major issues yet.
Here’s an example of what I’m seeing today (3 plants in the picture). The yellow circle is highlighting some rusty spots from a few weeks ago when this plant hit flower and I hadn’t been paying attention, so the P def got a bit more advanced but once I increased the bloom nutes no more leaves above or below this level got affected (also it was only on leaves on colas if supercropped- guess they needed more P to help repair the breaks I made).
The red circle shows where my leaf stems have started going purple on the lady that is about a week behind the one with the yellow circle. Ok it could be an Mg def, but I’m not seeing any other signs of that, and as she is really starting to grow her buds I’m assuming more P is needed so her bloom feeds have gone up. We’ll see in a few days if the purple subsides a bit.
The green circle is sort of to show that plant is quite dark compared to the other 2 but it doesn’t look it in the photo. She’s been getting the same feeds as the other 2 but feels a bit like she’s getting N heavy so I’ve cut her grow nutes completely at the moment she just gets calmag, algamic, topmax and bloomView attachment 1203659

Hmmmm, perhaps that's my problem! Maybe I have been to paranoid and tight with my nutes, always thinking/substituting I have PH problems when perhaps I might actually be starving them. Thanks, i think this might actually help me alot, appreciate that response and the pics! (sorry to hijack ya thread chili <3 <3 <3
 
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