Friend Jordan Goddard tweeted that he felt "absolutely empty" and was "heartbroken" at Fisher's death.
He added: "Couldn’t wish to meet a nicer human being always smiling always good energy . I will miss you forever my brother. Love you to pieces."
https://twitter.com/JordanGoddardJG/status/1607754686655766530?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1607754686655766530%7Ctwgr%5Ec4727c7bdb1756e0232e1f10f5fcf610c7e21408%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fwww.expressandstar.com%2Fnews%2Fcrime%2F2022%2F12%2F27%2Fbirmingham-nightclub-stabbing-victim-named-as-footballer-cody-fisher%2F
His "gym partner" Ollie Taylor described his friend as a "genuine and kind hearted boy."
https://twitter.com/OllieTaylorx/status/1607749656095637530?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1607749656095637530%7Ctwgr%5Ec4727c7bdb1756e0232e1f10f5fcf610c7e21408%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fwww.expressandstar.com%2Fnews%2Fcrime%2F2022%2F12%2F27%2Fbirmingham-nightclub-stabbing-victim-named-as-footballer-cody-fisher%2F
Fisher was also a sports coach at Woodrow First School.
The school said: "Everyone is devastated today to hear of the tragic and needless death of this bright, friendly and talented young man.
"Many of the children at school know Cody as their sports coach and have enjoyed working with him."
Police have launched an investigation into Fisher's death and are appealing for witnesses.
Detectives are viewing CCTV from the nightclub and urge anyone who was in the area to get in touch.
Police believe Mr Fisher was approached by a group before being stabbed and are urging anyone in the club to get in touch.
https://twitter.com/BrumPolice/status/1607790746756677633?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1607790746756677633%7Ctwgr%5Ebc586ed6675014d0e00f099e0fe0d8b90ab5d62d%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fwww.joe.co.uk%2Fnews%2Fbirmingham-stabbing-victim-identified-371961