Nutrients explanation

I’m going to test my water ph and start giving my plants nutrients what’s the EASIEST way to give my plants nutrients
(bag seed, 0 experience growing just learning )

No ph in soil but your tap water company report will say of its good or not. Any basic full fertilizer should work

Probably 8ml /g floranova bloom

I don't know what is the minimum basic nutrients that I should use from start to finish. Is it enough a kind of nutrient for veg and 2 kids for flowering stage ? Can you guys be very specific which nutrient should I use and when ? ( for example in the last 4 weeks of flower, or in the veg stage starting from week 3 ) Thanks