How to Prune Phalaenopsis violacea?
No pruning required. Cut back green flowered stem to lower node to encourage further flowering. Remove the flowered stems once yellow and dry

Phalaenopsis violacea · Phalaenopsis violacea
Grow in an open bark-based orchid compost or mounted on cork bark, where sufficient humidity can be provided. Provide enough bright filtered light, but keep away from direct mid-day sunlight or heating source. Ideal temperatures are around 17°C at night and 20 - 25 °C during day. Mist aerial roots regularly and water the plant when almost dry - pale, silvery roots are a good indication when to water. Orchid fertiliser can be applied regularly throughout the season. See Phalaenopsis cultivation for more details
No pruning required. Cut back green flowered stem to lower node to encourage further flowering. Remove the flowered stems once yellow and dry