could be genetic -- red strips in stems are sulfur deficiency realted.
the purple in leaves is likely genetics or cold temperatures, likely at night.
paling at bottom and moving up is N-deficiency.
new growth having internveinal chlorosis could be too much p or k. but purple petioles can b related to low P.
so, i'd wager you ar eout of balance on your feed.
use a leaf chart. it's not 1:1 .. it is messy translating these things. several relativistic factors are relevant. Leaf chart / mulder's chart can help understand it.
if ph is good, i'd rais your N portion of feed for sure. are you soilless? i never know what the biotab stuff is.. comes amended a abit? this is much easier in a soilless or hydro context, because we provide 100% of everything, so there's no guessing what is in the substrate when these thigns occur. you know what is in it.
soilles
120-130 ish ppm N
50ish P
180-200 K
100+ Ca
50-80ish Mg
110 or ower for S
this will be a good starting point, if soilless/hydro. it's more of a 7-8-15 or 8-8-15 weighted ratio of NPK. this mimics themost fertile soils in teh world, this is why reserached nutes have a similar ratio. (southern ag, jr peters, masterblend etc.. all have a 3 part system based on the same science) ... not some dope postulating in their small garden.