Pink & White Cocoworm (Protula bispiralis)
The Pink & White Cocoworm (Protula bispiralis) is a striking marine tube worm recognised by its elegant double crown of pink, red and white feather-like radioles. Also known as the Coco Worm, Hard-Tube Feather Duster or Red Fan Worm, this peaceful filter-feeding invertebrate lives permanently inside a hard white calcareous tube and extends its colourful crown into the current to collect suspended plankton and fine organic particles. It makes an impressive addition to a mature reef aquarium, but requires stable water chemistry, appropriate water movement and regular access to suitably fine foods.
Key Features
- Peaceful and non-aggressive behavior
- Filter feeds on plankton and fine organic particles
- Lives inside a hard white calcareous tube
- Displays a striking pink, red, and white feather-like crown
| Feature | Detail |
|---|---|
| Scientific Name | Protula bispiralis |
| Common Names | Pink & White Cocoworm, Coco Worm, Hard-Tube Feather Duster, Red Fan Worm |
| Water Requirements | Stable chemistry, moderate to strong water movement |
| Feeding | Requires fine foods such as plankton or specialized marine pellets |
FAQ
What is the ideal water movement for a Pink & White Cocoworm?
The Pink & White Cocoworm requires moderate to strong water movement to effectively extend its crown and feed on suspended particles.
Can the Cocoworm be kept with other reef inhabitants?
Yes, it is generally peaceful and compatible with most reef species when properly acclimated and kept in a mature aquarium.
How often should I feed the Cocoworm?
Feed regularly with fine marine foods such as plankton or specialized marine pellets, ideally once or twice per week depending on water conditions.
Andrea Wilkins –
The Cocoworm has become a highlight in my reef tank. Its vibrant pink and white crown stands out beautifully. It’s peaceful and doesn’t interfere with other inhabitants. I feed it once a week with marine plankton and it thrives in moderate water flow.
Matt Roberts –
Great addition to a mature reef. The coloration is striking and it’s very easy to maintain. I noticed it grows slowly but steadily. Needs consistent feeding with fine particles, which I’ve been providing regularly.
Neil Morrison –
Installed the Cocoworm in my 120-liter tank and it’s been thriving for over three months. The water movement in my tank is moderate and it’s doing well. The crown is always extended and active during water flow.