hello Andrew,welcome :-D
planted tanks need not be a scary thing,and can be as easy or testing
as you wish....as for me...i'm not great...but it's work in progress lol
the lighting on your tank will come into play,depending on what type
of plants you wish to keep,some only need low light,some more,
in the planted section on this site,there is a wonderful amount of
information,and i'm sure the answers that i can not give,will be there,
i have sand and gravel in my tank,and the plants are doing fine.
did you wish to use the pond soil for the whole tank,or sections ? or
potting around the plants.?