Here is what I do. After the seed has sprouted I use only ph'd water for the first week. The second week I use Fox Farms Big Bloom mixed 1/2 strength every other watering. The third week I follow the Fox Farms Schedule mixed 2/3 strength every other watering. After the forth week I begin to feed full strength every other watering until 2 weeks before harvest, which is when I switch to using ph'd water and molasses. Seems to work for me just fine. Plants love it.