Common name: Giant Tunicate
General information
The Giant Tunicate, Polycarpa contecta, is a fascinating invertebrate commonly found in the marine aquarium trade. Tunicates, also known as sea squirts, are sessile animals that filter feed by drawing water through their siphons. Polycarpa contecta is known for its large size and the ability to contract its body when disturbed, hence the name 'sea squirt'.
Details
- Recommended minimum tank volume
- 100 liter (26 gallons)
- Salinity
- S.G. 1.023 to 1.026
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 10 cm (4″)
- Care level
- Moderate to easy Prefers strong water flow
- Diet
- Omnivore Feeds on plankton and detritus
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassSea SquirtsAscidiacea
- OrderSea CucumbersPleurogona
- FamilyStolidobranch ascidiansStyelidae
- GenusSea SquirtsPolycarpa
- SpeciesGiant TunicatePolycarpa contecta (Sluiter, 1904)
- SynonymsStyela contecta Sluiter, 1904
Care
Caring for Polycarpa contecta requires a well-established aquarium with stable water conditions and low to moderate flow to mimic their natural environment. They are filter feeders, so providing a diet of phytoplankton or fine particulate organic foods is essential. It's important to ensure that the water quality is high, as tunicates are sensitive to poor water conditions.
Reproduction
In the wild, Polycarpa contecta reproduces both sexually and asexually. In the aquarium, sexual reproduction is less common, but hobbyists may observe budding, where a new individual grows from the body of the parent. This can be an interesting process to witness and can lead to a small colony of tunicates over time.
Symbiosis
While Polycarpa contecta does not have the same level of symbiotic relationships as some other marine organisms, it does play a role in the ecosystem by filtering water and potentially providing a surface for other organisms to settle on.
Habitat
Polycarpa contecta is typically found in the Indo-Pacific region, attached to hard substrates in areas with moderate water movement. They can be found at various depths, often in reef environments where they contribute to the biodiversity and health of the ecosystem.