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Christmas Tree Worm (Spirobranchus giganteus)

Find Christmas Tree Worm across reef-livestock retailers on ReefDock. Compare sources, check known pricing where available, and review care information before you buy.

Christmas Tree Worm
Photo: (c) terence zahner, some rights reserved (CC BY-NC), uploaded by terence zahner · cc-by-nc
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Where to buy Christmas Tree Worm

ReefDock searches the following reef retailers for this invertebrate. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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About Christmas Tree Worm

The Christmas Tree Worm features a distinctive double spiral of radioles (crowns) in vibrant colors including red, orange, yellow, white, and blue, with a hard, calcified white tube embedded in coral or rock. The worm itself remains hidden inside the tube.

Key facts

Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
Family
Serpulidae
Min tank size
20 gallons
Max Size
1
Type
Worm
Origin
Indo-Pacific from the Red Sea to Hawaii, found in coral reefs and rocky substrates.
Compatibility
Christmas Tree Worms are sessile filter-feeders that remain permanently attached to rock or coral. They are compatible with all reef fish and invertebrates but require stable water conditions and cannot be moved once established.
Notes
• Minimum 20 gallon tank • Requires stable reef conditions with strong but not direct water flow to maintain crown extension • Temperature range 72–78°F; sensitive to temperature fluctuations • Feed small planktonic foods (phytoplankton, zooplankton, rotifers) via target feeding • Place in established aquarium with established rock; do not attempt to remove from its tube
Category
Worm
Care Level
Moderate
Appearance Description
The Christmas Tree Worm features a distinctive double spiral of radioles (crowns) in vibrant colors including red, orange, yellow, white, and blue, with a hard, calcified white tube embedded in coral or rock. The worm itself remains hidden inside the tube.
Diet Details
Filter-feeder that consumes plankton and microscopic organisms from the water column. Requires strong indirect water flow and regular feeding with liquid phytoplankton or similar planktonic supplements in established reef aquariums.

Research before you buy

ReefDock is the sister app to Reef Trak. Use Reef Trak to research and log invertebrates, keep tank parameters organized, and maintain a complete livestock history. Log this invertebrate on Reef Trak.

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