1. Can I change my veg water to bloom water a few days before I change the light schedule to 12/12 to better the flowering stage? 2. Will changing it to bloom and taking clones from that plant after a few days of digestion better clones? (high pho) 3. I have a few that are over 24 inches in height, will a 400W HPS be enough light for these? I have 4 plants at the moment and they're Northern Lights x Big Bud. They're in a 2 X 4FT space. Ceiling is 8 feet tall. Anyone ever vegged a NL or BB plant this tall? Thank you all, spread the word b!