i usually put a tupperware container with holes cut in it inside my tank with some sand in the bottom of it, then place the slices of the shrooms inside and in a couple of days, the shrooms will attach themselves to small specks of sand. then i put crazy glue on the specks of sand that are attached to the shrroms, and crazy glue the shrrom to some lr rubble, and in a few more days the shrrom will start to grow on the rock.