I exchanged strings for wires (lst), I noticed pre-flowers
I didn't change feeding schedule (1ml alga bloom, 1ml alga grow), every other day
I'm thinking of trying a few drops of raw milk for micronutrients, if anyone here ever tried it let me know how it went.
One of the plant is a bit smaller but small flowers are already appearing and I'm going to change nutrients soon
Next time you can try to get a better light for flowering.
The plants need more lumens and a different colour (more red and orange) to get the best results.
Best of luck!