AmirR
Member
Yeah it can be underwateringPlain spring water should be good for a seedling. Spring water is a bit different than RO water as the cal/mag and other natural minerals are not removed. It is very difficult to overwater a seedling providing the medium has adequite drainage. Maybe it just needs more water...providing that the medium is sterile. I place a 1kw hps 44"'s from the top of the gravel to the bottom of the bulb and leave it there throughout the grow..
I didn't give them much water i just keep the medium moist