Quote Originally Posted by Rusty Trichome
Till you can get the cash for a ph pen, I'd go get a freshwater aquarium ph test kit. They run about $7.00 or so at most pet centers.

Might also be from overwatering.
yeah, agree with overwatering. seedlings tend to be forgiving on ph but only to a point. might as well get used to it now though. ph is now a part of his life.