| There are many great places on the internet to read about how to care for phalaenopsis. Will just tackle the yellow leaf question to start with. If you have only had the plant for a few days the problem may have occurred before you took possesion. In my experience the fastest way to kill one of these plants is to give it too much sun. If the leaves are getting warm (feel them) - too much sun. Usually if only the bottom leaves are turning yellow this is the natural progression of life for a phal - the bottom leaf or two turn yellow and drop which coincides with another leaf or two growing out the top. So your phal should maintain a healthy 6-8 leaves at all times. Normally you don't have to repot a new orchid for a year or two unless it comes in a media type that is not good for you personally. For example folks who tend to overwater should probably plant in something fairly porous like bark while the people who are "pros" tend to like sphag or peat mixes. Lots and lots of options. There is not right way to do it. The majority of phals or killed by overwatering - the roots will rot very quickly if they stay too wet. Good luck.
mike |