siamese fighting fish ageSiamese combating fish hereafter stated by the common name “betta” are present in fresh water ponds of Southeast Asia. They are also bred as decorative fish and are effortlessly available in pet stores around the globe . Males of this species exhibit strong and stereotyped aggression in protecting their territories towards intruding conspecific males . Patterns of aggressive conduct come with frontal monitor erecting the operculate, fins, and tail while facing an opponent observed by the erection of fins and tail, and actual attack by biting the intruder. Males can even intensify the coloration scale during an agonistic interplay . For a long time antidepressive drugs were used mainly by human.