Inhabits coral-rich areas of clear lagoons, channels, and outer reef slopes. Lives generally solitary. Juveniles in small groups on algae and coral reefs inshore. Feeds on benthic algae.
Scarus nigeris commonly referred to as Dusky parrotfish. Difficulty in the aquarium: Not for beginners. A aquarium size of at least 5000 Liter is recommended. Toxicity: Toxic hazard unknown.