400w mh

Planted seeds August 9/2017

I finally got a grow going after years of lurking. I've been lurking since OverGrow and have had the equipment for years-- just always lived in the wrong place or had a job that consumed my entire life. But anyway, circumstances have brought me here with the following: I purchased a bunch of...

This is a coco grow. 4 autos all 15 days old. I started them in 3 gal pots(12 liters) Started slow but they are coming back. currently under 23w 6500k cfl lights. Is this the time to switch to 400W MH? How far the light should be? Also in 1-2 days they will need water should I feed them with...