First week I didnt feed em at all just the first initial water when I dropped the germed seeds in so now got res and pumps feedin em 4 feeds a day for 15 minz each my setup is about 50 50 perlite soil mixed so wicked drainage only top 2 Inches pretty much soil very bottom ive got about a 2 in layer of spag moss since ive started to feed they have really started to grow ive got another 3 seedlings about half inch tall no water for th3m lolI noticed u watered around the seedling, now im not sure if my technique actually makes a difference in growth but i like to do it lol. What i do is water around the outter edges, away from the plant so the roots are forced to grow out in search for the water. It seems to work for me, my plant is only 8" tall if that, and my stem is really thick.