The Peacock Gudgeon (Tateurndina ocellicauda) is a beautifully colored nano fish from Papua New Guinea, featuring a shimmering blue body with yellow fins and vibrant red markings. Males display a distinctive spot near the tail and develop a slight forehead hump when mature. Peaceful and full of personality, they do well in small community or breeding setups with plenty of hiding spots. A dazzling and easy-to-keep species that quickly becomes a tank favorite.