I'm not sure as to the why, but I do know its a line specifically for the independent/small pet/fish store. Is this a good starting point for me, though.
I appreciate all the feedback, but I'm less than 2 months into my 1st planted tank and never dreamed there would be so many options for ferts. I'm enjoying it, and really like the learning, but some of the information, I'm embarrassed to say, is still a bit over my head. Please be patient with me... I'm learnin'.