Having just recently been suckered into getting more orchids (Cattleya's and Dendobiums) at Wal Mart......... I have noticed these from Wal mart are usaually in a 3 inch square pot Volcanic rock and newspaper. Are there any advantages to Volcanic rock, other than it is cheap and plentifull in Hwaii.
My reading research shows it holds water well. Will it wick water? The thought of using it like Prime agra for hydroponic has crossed my mind