Question
QUESTION: I bought a White Phalaenopsisfrom Home Depot last Spring and it bloomed afterward, by fall the roots rotted and I cut the dead parts with a clean razor blade and repotted.  The roots started to come back when it's major leaves turned red and rotted off (black and white fuzz), I cut those off and two new leaves grew in quickly.  Now it's spring and the roots are gone and there is a black mushy spot just below the leaves.  What now?

ANSWER: Samantha, I may need a little more information to give the best advice.  What I would like to know is what potting mix did you use when you repotted?  Where were you growing the plant? Did you use a plastic pot with aa lot of air holes in the bottom?  Was the pot ever sitting in water?  I'm concerned about the white fuzz. That may be an insect called a mealy bug.

I'll reserve my specific reommendations pending your further information.  Thanks.

---------- FOLLOW-UP ----------

QUESTION: My orchid did die...
The orchid was potted in bark and moss in a plastic pot with drain holes in the bottom. I only watered when the potting media was dry, and fed it every other watering. The pot was sitting in a base of rocks and water for more moisture but never sat in the water. I kept it near the window but out of direct sun, because I have dealt with sunburned leaves in the past.  
My friend bought me a new orchid that is potted in only moss in a terra cotta pot.  What now?

Answer
Sorry for the loss of your plant Samantha.  Moss, as part of a potting mix, can be a problem as it tends to compact over time reducing air flow through the potting mix.  In the short run it's fine but will compact in less than a year.  The way you were growing the first plant sounds fine except for the moss.  I prefer a standard orchid potting mix that consists of fir bark, perlite, charcoal, tree fern.  An east window is best for growing phals and a temp range of 65-80 degrees is ideal.  I assume the terra cotta pot has abundant drainage holes in the base. You will not damage the plant if you remove it from its pot to examine the roots.  If you want to keep it in the pot, repot it by using just some of the moss to alloow it to be looser in the pot.  Better for the plant is a clear plastic pot with abundant drainage holes.  Roots on orchids are photosynthetic so can use light entering the side of the pot.  A clear orchid pot also allows you to monitor your root condition more easily.