Common name: Four-lined Nudibranch

General information

The Four-lined Nudibranch, scientifically known as Polycera quadrilineata, is a striking sea slug found in the marine waters of the Atlantic Ocean and the Mediterranean Sea. This species is known for its bright yellow body adorned with black lines and blue-tipped appendages, making it a visually appealing addition to the reef aquarium. Nudibranchs are part of the phylum Mollusca and are renowned for their extraordinary shapes and vibrant colors.

Care

Polycera quadrilineata requires a specialized aquarium setup that replicates its natural environment. They are sensitive to water quality and require stable, pristine conditions. This species feeds primarily on bryozoans, so it's essential to provide a diet that includes these or similar organisms. Due to their specific dietary needs, they may not be suitable for all reef aquariums.

Reproduction

Nudibranchs, including Polycera quadrilineata, are hermaphrodites, possessing both male and female reproductive organs. They can lay masses of eggs, which hatch into free-swimming larvae before settling down and transforming into their adult form. In captivity, breeding nudibranchs can be challenging due to their complex life cycle and specific larval requirements.

Habitat

The Four-lined Nudibranch is typically found in shallow waters, often on rocky substrates where bryozoans, their primary food source, are abundant. They are adapted to cooler water temperatures and can be found at various depths, often not exceeding 30 meters.