hi
can someone tell me what fish is this. the guy who gave it to me told me it was some kind of malawi, but it looks more american. it is double the size of my fish in my com tank, that has red devils,gt's,dats,cichlasoma nicranguense. is this fish aggressive? will i able to add it ,or rather give it back?

can someone tell me what fish is this. the guy who gave it to me told me it was some kind of malawi, but it looks more american. it is double the size of my fish in my com tank, that has red devils,gt's,dats,cichlasoma nicranguense. is this fish aggressive? will i able to add it ,or rather give it back?

