seedlings or clones, I just give them water at first, as they get some new growth I use 1/4 dose of fish emulsion mostly nitrogen. When it gets a foot or two tall I give half doses or full doses , a couple capfuls per gallon every watering , up to half a cup per gallon once a week. Tiger bloom works for me too for late veg and early flowering or for clones too, it prevents nitrogen deficiency. foxfarm Big bloom works for my plants in flowering, safe bet as he buds get bigger. I flush with water last 2 weeks then no water the last week