Common name: Anna's Chromodoris

General information

Chromodoris annae, commonly known as Annae's Chromodoris or the Blue and Black Nudibranch, is a strikingly colorful member of the nudibranch family. These sea slugs are known for their vibrant blue bodies with black and yellow lines and a frilly mantle that adds to their visual appeal. They are a popular subject for underwater photographers and a fascinating addition to any reef aquarium.

Care

Caring for Chromodoris annae requires a well-established reef tank with plenty of live rock and a stable environment. They are sensitive to water quality and require pristine conditions with no detectable levels of nitrates or phosphates. These nudibranchs feed exclusively on certain species of sponges, so it's crucial to ensure a continuous food source is available in the aquarium.

Reproduction

In the wild, Chromodoris annae are hermaphrodites, meaning each individual possesses both male and female reproductive organs. They can lay spiral ribbons of eggs, which develop into free-swimming larvae. In captivity, breeding is rare, but with optimal conditions, it is possible to observe their unique mating behavior and egg-laying process.

Habitat

Chromodoris annae is native to the tropical Western Pacific, particularly around the Philippines and Indonesia. They are typically found on coral reefs and slopes, often at depths ranging from 5 to 30 meters where they have access to their preferred sponge diet.