Spots on my leaves

Do you PH your water before adding your nutrients? Looks as tho she Is telling you something is slightly out and that would be my guess x

I think you're watering a little too much/often, also I wouldn't follow the BioBizz schedule when you're growing autos. You shouldn't really need to give them anything but maybe rootjuice the first couple weeks, and every other day is pretty often to be feeding since you're in soil. I grów in soil with BioBizz too so if you want to check out my diaries, some of them have quite precise notes on the feeding/watering and amounts. Those dots are likely the result of overwatering or having burnt the leaves with waterdroplets. Water only when you can feel about top 5cm has gone dry, and consider feeding every 2-3 waterings. It's a bit harder to monitor the soil with the pebbles on top, but you can try using a stick to see if it returns out of soil dry or lift the pots to know the weight - heavy=still water light=dry.

You might have very light imbalances in your PH. with hydros.. when feeding, water + nutrients try make it so their ph is near the same value. Nothing major yet. But she is showing you that things aren't dialed in just right. As I don't see any set defs/toxs.. so, my guess would be very light ph imbalance. Or, getting dif PH feeds?