Whats your mother plant maintenance nutes approach (organic and/or otherwise)

Eyeballing my 2 primary moms and led me to thinking about the nute choices I have for getting them back to their full glory, they're starting to show something I've not quite diagnosed yet but given their age I know its an imbalance/deficiency or lockout of some sort. They were originally dropped in as clones into an organic 'super soil' mix that had been freshly amended/cooked and that's been many months ago.

I'm looking at 2 types of feed schedules - #1 being moms for the sake of active use and providing clones under modest light and #2 being for long-term storage/upkeep of genetics in case I want to run them again / have a plan B when trying something new.

For my current 'organic' moms I'm looking at NFTG as my 1st choice since I don't want to upsize the pots and being in smart pots the bonsai/rootball trim approach is trickier and may stress the plant a bit. I've top-dressed with some light N amendments (i.e. insect frass/alfalfa/neem) but I need to figure out the symptom(s) being shown. The 'one shot' from NFTG may be an option as well or another 'blend' like TomatoTone & the likes.

I'm also not dead set on staying 'organic' for moms - I'm personal use only so not gunning for certified/etc. So a semi-organic would be next option - i.e. what Pure Blend Pro used to be but it sounds like that's gone off-market and needs a viable replacement to be identified if one exists.

For the non-organic path I'd assume coco/perlite/biochar and some decent line - I used to use the PBP but like I said sounds like I need to find a replacement.

So how do you keep your moms?

Back to this topic, considering using NFTG and 'One Shot' for something I can top-dress when the mix I planted in has ran dry. The one issue I'm seeing is the NPK on it has no K - though it claims Kelp meal is part of its composition.

Anyone know the specific rations/minimums I should be looking for given the use for mother plants in long-term maintenance?

Long term maintenance I just use my normal veg feed but for the occasional addition of an enzyme product to breakdown any old dead roots. Cannazyme is what I am using.

I just use plain tap water (its around 120ppm). I think feeding them only makes them bigger which takes up more space that can be better used
I keep them kind of small and short and defoliate every now and then when its needed.
The separation and buckets were due to pest getting to them, but now each one has its own "island and moat" of sorts, free of pests and recovering pretty good so far.
Still more work to be done for this space, but this was a few weeks ago.

Happy growin'