Plants don’t seem happy their trying to tell you something at what ph are you feeding them. You should flush and check run off. And you should just use one brand of nutrients. I use general hydroponic.1/4 teaspoon per gallon ph range 5.8 to 6.5 throughout and just a drop of floralicous plus...
Your best bet is SOG since their regular seeds. You should go to 12/12 from now and prune to your space till they show signs of sex. Look up 12/12 from seed. And the Vitaspectra is perfect for that space