Nice little betta. I didnt know any better and got a female koi betta, she was really nice looking but decided to beat up everyone in the 40B so tried moving her to the 10g with my other male betta. She beat him up too and destroyed his fins. Ended up giving her to a guy at work. Poor guy went from getting a little betta and a 5gal setup from another coworker to having his wife decide she wanted a 60g corner saltwater tank within about a week lol.