Bisma Christmas Tree Worm Rocks

Bring a burst of holiday magic to your reef year-round! These vibrant Bisma rocks come alive with colorful Christmas Tree Worms (Spirobranchus spp.), known for their dazzling spirals and gentle filter-feeding behavior. Each piece is truly one-of-a-kind, a living decoration that adds motion, personality, and incredible visual interest to any tank.

What Makes Them Special

• Features fully attached, thriving Christmas Tree Worms in a variety of natural colors
• Each Bisma rock is unique in shape, texture, and worm arrangement
• Peaceful filter feeders - reef-safe and suitable for mixed reefs
• Packed with character and movement as the worms spiral open and gracefully retract
• A stunning center-piece option for nano tanks and full reefs alike

Care & Placement

Christmas Tree Worms thrive best in:
• Moderate to strong flow to deliver suspended foods
• Stable reef parameters similar to SPS-keeping (Bisma is typically a type of Porites/ encrusted rock)
• Moderate to strong lighting, for the host coral’s needs

Target feeding is not required, but occasional micro-foods (reef roids, phyto, zooplankton, etc.) are appreciated.  These are delicate, slow-growing filter feeders. Please acclimate gently.

Notes

Listing is WYSIWYG - you’ll receive the exact rock chosen.