DAY EIGHT: The Betta is a Male

Greenie is definitely a male betta fish. I feel silly for not looking into this sooner. The males are the ones with the more elaborate fins and tail, whereas females have shorter, more subdued fins and tail. Males are also generally brighter in color. I guess the main thing we need to be aware of with our male betta is that he can not be in a tank with other male bettas. Betta spendens isn't called Siamese Fighting Fish for nothing! They'll fight to the bitter. Someone at work told me that in his "meathead days" in college they'd put male bettas together and place bets on who would "win." That's so awful! Poor bettas.