Common name: willan's chromodoris

General information

Chromodoris willani is a striking species of nudibranch, a group of soft-bodied, marine gastropod mollusks. This species is known for its vibrant blue body with a central white stripe and numerous black spots. It was first described in 2008 and is named after the nudibranch researcher Richard Willan. These creatures are a favorite among underwater photographers and reef hobbyists due to their vivid coloration and intricate patterns.

Care

Caring for Chromodoris willani in a reef aquarium requires attention to water quality and diet. They are sensitive to high levels of nitrates and phosphates, so maintaining pristine water conditions is crucial. They primarily feed on sponges, so it's essential to provide a diet that includes these or specialized prepared foods that meet their nutritional needs.

Reproduction

Like many nudibranchs, Chromodoris willani is a hermaphrodite, possessing both male and female reproductive organs. They can self-fertilize or mate with another individual. The eggs are laid in a spiral ribbon and will hatch into free-swimming larvae before settling down and metamorphosing into their adult form.

Habitat

Chromodoris willani is found in the tropical waters of the Western Pacific, particularly around the Philippines and Indonesia. They are typically seen on or near coral reefs where their sponge food sources are abundant. Hobbyists should replicate their natural environment by providing a reef setup with plenty of live rock and crevices for them to explore.