Commonly called Staghorn or Elkhorn Fern due to their weirdly wonderful, unique, antler shaped leaves.
Need bright light but avoiding direct sunlight.
Allow the soil to begin to dry out before watering. Due to the hard shield leaves covering the plant root ball, it is best to water from below rather directly onto the leaves. Dunk the plant in water for 10-15 minutes (less in winter) and ensure there is adequate drainage.