I purchased a small - 2" Lockhartia oerstedii at an auction on March 21/09. It has some new grow but nothing to get excited about. The plant just doesn't seem happy. It is kept in moderate light and temps. Potted in moist spagh moss, misted every other day or so. I am wondering if the potting medium is being kept too wet - I was told to keep it moist at all times. One leaf is yellowing. Advice on how to grow a healthy plant would greatly be appreciated.