Got a very large tank with has 3" of sand and no UGF. Thinking of putting
plants in pots (say 6"-8" pots with holes on sides) and bury them in sand.
This way I don't have to redo all the substrate.

Will it work? What would the best best substrate for these pots? I am
going to plant large swords ( Echinodorus bleheri
http://www.aquariumplants.com/cart/i...mazonSword.jpg)

Thanks for helping.