my plants where running 24/0 for month so 2 days ago i switched it up sens i didnt get a timmer i have to do it manuel. when im home. so i leave the light on till 12 at night then i shut it off till 12 in the afternoon . is that fine?? also when can i start feeding them with big bloom.
That light timing is fine if you keep on top of it - don't forget. A timer is cheap and better. I'd start feeding bloom when they start flowering, personally. (Or what Ghooost said as I as typing.)
But is there any benefit before there are flowers, except maybe slightly before to build potassium levels a bit?
ok i used the 3 way ph tester and it was 3-4 moist so i filled up 1.6 litter cup with water and i put 3 table spoons of big bloom. it says mix 4 table spoons with 1 gallon of water so a gallon is almost 4 liters. and heavy use says 1/2 cup so they should be fine hope i didnt over feed them