3-room apartment

Copper tetra (lat. Hasemania nana) is a tropical freshwater fish from the characin family of the characinformes order. Popular aquarium fish. The body length of females is up to 5 cm, males up to 2.7 cm. The color of males is copper with yellow and green hues depending on the position of the light source, unpaired fins are copper-red with white ends, a wide black strip with two yellow spots runs along the middle of the caudal fin on the sides at its base, continuing on the caudal peduncle.