I would water it well and then let it dry out a little between waterings. If it is in a 4" pot, water it every 5-6 days depending upon light and temperature. They can impact the drying time.
In a 5" pot, try watering it every 6-7 days as an example.
The important part is not to grow them moist. They need to have their roots dry off a bit.
Orchids in general are not helped by a regular feeding. Once a month at half strength is plenty.
