Common name: Rope Sponge

Scientific name: Callyspongia monilata (Ridley, 1884)
Erect rope sponge and Cushion starfish underwater
Amphimedon compressa, rope spongeShrimp on a red rope sponge

General information

The Rope Sponge, scientifically known as Callyspongia monilata, is a fascinating marine invertebrate that adds a unique texture and form to the reef aquarium. This sponge species is characterized by its long, rope-like branches that can vary in color from light brown to purple. Sponges are some of the oldest multicellular organisms on Earth, and they play a vital role in the marine ecosystem by filtering water and providing habitat for other organisms.

Details

Recommended minimum tank volume
100 liter (26 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 7.8 to 8.4
Average size
30 cm (1′)
Care level
Moderate to easy Requires stable water conditions.
Diet
Planktivore Filters plankton from water column.
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
    Callyspongia
    Callyspongiidae
  6. Genus
    Callyspongia
    Callyspongia
  7. Species
    Rope Sponge
    Callyspongia monilata (Ridley, 1884)
  8. Synonyms
    Callyspongia bandae (Brøndsted, 1934)
    Chalina bandae Brøndsted, 1934
    Chalina monilata Ridley, 1884
    Dactylochalina monilata (Ridley, 1884)

Care

Rope Sponges are filter feeders and require a constant flow of water to thrive. They are best suited for mature reef aquariums with stable water conditions and low to moderate lighting. It is crucial to provide them with a gentle, indirect current to facilitate feeding without damaging their delicate structure. They should not be exposed to air, as this can cause tissue damage.

Reproduction

Sponges reproduce both sexually and asexually. In the aquarium, Callyspongia monilata may reproduce asexually through budding, where a part of the sponge breaks off and develops into a new individual. Sexual reproduction involves the release of sperm into the water column, which then fertilizes eggs in other sponges. However, sexual reproduction is less common in the home aquarium.

Habitat

Callyspongia monilata is found in the Caribbean Sea and the western Atlantic Ocean. It typically inhabits reef slopes and overhangs where it can take advantage of water movement for feeding. In the wild, these sponges can be found at various depths, often between 10 to 30 meters.