Although they may be called a cactus, they belong to the succulent family.
Light: Bright, indirect sunlight
Water: Allow the plant to dry between watering. Water sparingly at all times & very little during Winter.
Fertilizer: Light, airy, well-drained soil. Does not require fertilizer, but the potting mix should contain natural, organic matter. It should not be too acidic.
Maintenance: No need for regular pruning. Just remove any dead or unsightly stems. Remove flowers when they stop blooming.