Common name: Indian Caloria

General information

The Caloria indica is a vibrant and colorful nudibranch, a type of sea slug, that is popular among marine enthusiasts for its striking appearance. This species is known for its elongated body with numerous cerata, which are finger-like appendages that cover its back. The cerata are usually orange or red with white tips, which serve as a warning to potential predators about their toxic nature. The body of the Caloria indica is translucent, allowing some of its internal organs to be visible, adding to its unique aesthetic.

Care

Caring for Caloria indica in a reef aquarium requires attention to water quality and tank conditions. They are sensitive to changes in water parameters, so maintaining a stable environment is crucial. These nudibranchs feed exclusively on certain species of hydroids, so it's important to ensure a continuous food source is available in the aquarium. Due to their specialized diet, they are not recommended for beginners.

Reproduction

Caloria indica reproduces through a process called spawning, where eggs and sperm are released into the water column. In captivity, if conditions are right, they may lay spiral ribbons of eggs on the aquarium glass or rockwork. However, raising the larvae to adulthood is challenging and typically requires a separate rearing system with appropriate food sources.

Symbiosis

While Caloria indica does not have any direct symbiotic relationships like those seen in clownfish and anemones, its presence in a reef tank can contribute to the control of hydroid populations, which can sometimes become pests.

Habitat

In the wild, Caloria indica is found in the tropical waters of the Indian Ocean, particularly around coral reefs and rocky substrates. They are usually observed at depths where their prey, the hydroids, are abundant.