siamese fighting fish difference between female male3 Mb. Fixed variants are denoted with red. Double tail is one of the greatest and most preferred among quite a few fin varieties of combating fish. This mutant presents a completely unique ventralized sample of dorsal trunk and tail, and features a doubling of the number of fin rays for both dorsal and caudal fins fig. 4A and B and supplementary fig. S16, Supplementary Material online. The female Betta fish aren’t as suitable in appearance as the male species since their colors are less brilliant, fins are smaller and never as large or ornamental in appears like those seen in the males. The Albino range of Betta fish was discovered in 1927 while an alternate variety of Albino came into life later in the year 1953. However, scientists discovered much later that this range didn’t belong to the real Albino specie. It was only in late 1994 that Tanaka effectively bred Albino Betta fish which has now gained widespread popularity in the market. The male Betta fish are continually more competitive than the ladies. It is believed that the Siamese fighting fish responds aggressively even to their own reflections in a mirror.