The Black Tetra, also known as the Black Skirt Tetra, is a hardy fish recognized for its deep gray-black body and flowing fins, creating a graceful appearance in aquariums. Specifications: Scientific Name: Gymnocorymbus ternetzi Origin: South America (Paraguay, Brazil) Maximum Size: Up to 2.5 inches (6 cm) Tank Requirements: Minimum 15 gallons; prefers a well-planted tank with open swimming space…