Scientific Name: Pterophyllum sp. Red Koi Angelfish The Red Koi Angelfish is a colorful freshwater aquarium fish and a variety of the species Pterophyllum scalare. It is popular for its beautiful koi-like colors and elegant fins. Appearance: Usually white or silver with bright red or orange patches, sometimes with small black spots. It has long, triangular fins and a tall body shape. Size: Can grow up to about 6 inches (15 cm) long and appears taller because of its fins. Tank Requirements: Freshwater aquarium with a temperature of 75–82°F (24–28°C). Recommended tank size is at least 20–30 gallons with plants and calm water. Temperament: Generally peaceful but may be slightly territorial. Best kept with peaceful fish such as tetras, corydoras, and small gouramis. Diet: Eats flakes, pellets, and frozen or live foods like bloodworms and brine shrimp. Notes: Assortment includes a mix of colors and patterns; Exact colors and markings will vary; Stock photo used; fish received may differ.