The New Guinea Datnoid or New Guinea Tigerfish (NGT) is a large growing predatory perch found in brackish and fresh waters in Indonesia’s West Papua Province and Papua New Guinea, specifically the Fly River and its tributaries. In the wild, they inhabit a variety of habitat types but are typically found in warm, slow moving stretches of rivers or lakes in areas close to overhanging vegetation. An ambush predator, they tend to hang motionless in the water awaiting smaller fish or invertebrates to swim by, using quick reflexes and a huge protrusible jaw to literally inhale prey items. In the aquarium, they require well-oxygenated water and are sensitive to water quality, so regular water changes are important to keep them thriving. They will tolerate brackish conditions but do not require them to thrive. Tankmates should be chosen carefully as they can eat surprisingly large fish and other more aggressive or very active fish will likely stress them out and potentially cause their distinct pattern of bars to fade.