Cyrto - hypnum looks similar as wichurae moss, but it likes more moist or wet than wichurae moss. DO NOT let it dried out. Sometime people place it underwater too.
At Moss Design Gallery we use grow lights for all of our moss products, ensure the lights are between 6,500k - 7,000k in color for 10 hours a day OR you can use a east facing window! Make sure you don't leave the grow lights on all the time, the moss needs to rest!