Reeflings

Common name: Red Sponge

Scientific name: Neopetrosia exigua (Kirkpatrick, 1900)

General information

Neopetrosia exigua, commonly known as the Red Sponge or Red Tree Sponge, is a species of marine sponge found in reef environments. This sponge is notable for its vibrant red coloration and tree-like structure, which adds a splash of color and unique texture to any reef aquarium. It is a filter feeder, relying on the flow of water through its body to capture food particles.

Details

Recommended minimum tank volume
50 liter (13 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
10 cm (4″)
Care level
Moderate to easy Prefers strong water flow
Diet
Detritivore Feeds on detritus & bacteria
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Sponges
    Porifera
  3. Class
    Demosponges
    Demospongiae
  4. Order
    Haplosclerida sponges
    Haplosclerida
  5. Family
    Stone Sponges
    Petrosiidae
  6. Genus
    Neopetrosia sponges
    Neopetrosia
  7. Species
    Red Sponge
    Neopetrosia exigua (Kirkpatrick, 1900)
  8. Synonyms
    Haliclona exigua (Kirkpatrick, 1900)
    Neopetrosia pacifica (Kelly-Borges & Bergquist, 1988)
    Neopetrosia pandora de Laubenfels, 1954
    Petrosia exigua Kirkpatrick, 1900
    Xestospongia exigua (Kirkpatrick, 1900)
    Xestospongia pacifica Kelly-Borges & Bergquist, 1988

Care

The Red Sponge requires a moderate to strong water flow to thrive, as it needs a constant supply of plankton and dissolved nutrients. It is important to maintain high water quality with low nitrate levels. Red Sponges do not possess photosynthetic symbionts, so they do not require intense lighting, making them suitable for various locations within the aquarium.

Reproduction

Reproduction in Neopetrosia exigua typically involves both asexual and sexual methods. Asexual reproduction occurs through budding or fragmentation, allowing hobbyists to propagate the sponge by carefully cutting a piece and attaching it to a rock or substrate. Sexual reproduction involves the release of gametes into the water column, but this is rarely observed in aquarium settings.

Habitat

Neopetrosia exigua is found in the Caribbean Sea and adjacent waters. It prefers shallow waters where it can attach to hard substrates, often in areas with strong currents that facilitate its filter-feeding lifestyle.