Water and Fertilizer
For plants grown in bark, water once per week at most, and only if potting medium is dry. Submerge entire pot in water for 5 minutes and allow to drain OR place 2 to 3 ice cubes on top of potting medium. Phalaenopsis grown in sphagnum moss (e.g., our small, 2" Orchids) need water less frequently; every two weeks should be sufficient. Be sure to water moss thoroughly, since moss that is very dry may not immediately absorb water. For both, fertilize with a balanced mix (e.g., Grow More 20-10-20) every other watering at half the normal dose.
After the last flower expires, cut the spike above the node (nodes are those bumps on the stem) from which the first flower appeared. A new spike can branch off within weeks. Alternatively, remove the flower spike entirely to allow the plant to recover and form a new spike in 3 to 4 months.