Aerangis arachnopus prefers consistently moist but not waterlogged conditions. Water thoroughly when the potting medium is nearly dry. Reduce watering slightly during cooler months to prevent root rot.

Ensure good air circulation around the roots to aid in drying.

Pruning is generally not required for Aerangis arachnopus unless removing spent flower spikes or dead/damaged roots and leaves. Use sterile tools for any necessary cuts to prevent disease transmission.

Focus on maintaining a healthy root system and overall plant structure.

Propagation of Aerangis arachnopus is best achieved through division of mature plants. When the plant has multiple pseudobulbs and sufficient root mass, carefully separate them with a sterile knife.

Ensure each division has at least 2-3 pseudobulbs and healthy roots before repotting.

Repot Aerangis arachnopus every 1-2 years, or when the potting medium begins to break down. Use a well-draining orchid mix, such as fine bark or sphagnum moss.

Repot after flowering, when new root growth is evident, to minimize stress on the plant.