I moved my fish from outdoors to a system in the basement for the winter.
I have pea gravel in my outdoor growbeds but am using hydroton
in my indoor system because of the weight. In my outdoor system
I direct seed lettuce in my growbeds and get good germnation but
when I direct seed lettuce in the hydroton I do not seem to get the
lettuce to come up. Has anyone else had this problem and found a
better way or a suggestion on what to do.