Common name: Forskal's side-gilled slug

General information

The Red Sea Pleurobranch, scientifically known as Pleurobranchus forskalii, is a species of side-gilled slug belonging to the order Pleurobranchida. These invertebrates are notable for their large, flattened bodies and the presence of a prominent gill on the right side, which is partially covered by the mantle. They exhibit a range of colors, typically featuring mottled patterns of brown, white, and sometimes pink or yellow, which provide excellent camouflage against the reef.

Care

In the aquarium, Pleurobranchus forskalii requires a well-established system with plenty of live rock and a sandy substrate to mimic their natural habitat. They are nocturnal creatures and prefer dim lighting conditions. As opportunistic feeders, they will consume a variety of meaty foods, including small invertebrates and detritus. It's important to monitor their feeding to ensure they do not deplete the population of beneficial microfauna in the tank.

Reproduction

Reproduction in Pleurobranchus forskalii involves laying egg ribbons on hard substrates. These egg ribbons contain numerous eggs that will develop into planktonic larvae. In the home aquarium, breeding is not commonly observed, and the larvae would require specialized care to reach maturity.

Symbiosis

While not known for any specific symbiotic relationships, the Red Sea Pleurobranch's role in the ecosystem as a detritivore helps maintain a clean environment by consuming dead organic material, which can be beneficial in a controlled aquarium setting.

Habitat

Pleurobranchus forskalii is found in the Red Sea and across the Indo-Pacific region. They inhabit reef slopes and lagoons, often hiding under rocks or within crevices during the day. They are typically found at depths ranging from shallow waters to about 30 meters.