BioBizz light mix is a good choice especially for new growers. I use it right outta the bag with no ammendments for germ through harvest. It'll support seedlings for a coupla weeks with only watering...then I start bio grow or fish mix at 1/4 recommended doses...at flower, I blend in the bloom. I grow in 2 ltr pots and only feed or water when my moisture meter indicates a need.
Watering....I use only DI water for two weeks...then move to 6.4 ph for feeding. Since it's all organic, there's no need for runoff. My usual watering/feeding uses 5-700 ml in a 2 ltr pot.
