anyone know how to design i mean decorate a oriental theme fishtank, how do you decorate a tank like the ones you see in the big asian restuarants? it would be appreciated i have a 20 gallon tank and i like natural gravel, or sparkly black gravel(which seems to be a mix of black and silver gravel) and i could be swayed to use red gravel a setup guidline on how to recreate this in my quarium would be appreaciated