Usually you'd hand-water seedlings. It depends on the medium they are in how often flood cycles are needed, once they go into the system. Also, HPS in seedling stage will produce taller, stretchier plants. Get some blue light in there ASAP, even if it's just a cheap shop light.
stinkyattic Reviewed by stinkyattic on . water schedule Hi all does 15 min. every 4hrs on flood and drain set up sound good for plants that are 1 wk. old, they are under a 250hps about 12inches away. Thanks Big Len Rating: 5