i dont see how it would make it herme but i dont see a point unless u have extra nuts in the soil thats locking the plant up outher than tht you want the nutes ... i dont flush bettween veg and flower
if you want yeild a week if you wanna get more cbn cbdn and baked stonded wait a week or 2 ! and if not and you aant a nice high from it uplifiting pick it asap , all depends on strain to....
i would leave em untill there much taller/ bigger how high is ur led from them and what u running for outher light? the growth in thosr pics should stay w.o a closer in pic on the main stem on bottom i cant imfore you with my oppion of a crooct way ... post pis of the stems pull ur bottom...
hit them with a stronger dose of nutes and see if they respond looks defficent in everything same em .... my first grow had ur probs u need more n,p,k and cal/mag 90% sure. ur watering may be over or under ill help u out but feed them .. what you using for nuts??