First Proper Grow

[Keepherlit]

So I have 2 plants ( don't know exact strain but it's 100% a cheese hybrid) under a 600w hps (flowering spectrum) in 5 gallon pots in organic soil , there on there 6th week of veg and are roughly 10" and 12" tall, one of them has been topped twice and lst and the other one has been topped once, so my first question is : 1: how much should I be watering/feeding them, and 2: when should I switch to flower and a rough yeild estimate, right now their being watered 2gallon a week of plain water and a gallon of nutrient water a week, is this too much or too little?

 

[Dunge]

Heft the pot to feel for water weight.
Put more soil in the pots. Stems will shoot new roots.
If those pots don't have drain holes, I don't know what to say.

 

[Keepherlit]

Thanksfor the reply, Yeh there 6 medium sized drainage holes at the bottom, I'll put fresh soil on the top in the morning, I'll lift the pots for weight from now on, thanks