nice bicolor banjo there , i have 3 of them they get around 4 or 5 inches in length, eat almost anything they can get their mouths too, dont be fooled by the slow and none exsistent life they seem too lead as they can be fast when they need to be. They will take small fish,( including baby Khuli loaches to my horror) so be carefull around small fish. Great oddball to have there is a longtail version that gets 12inches! but most only reach 6inches max. Almost forgot! They will molt as well, so dont be alarmed if you see them doing this lol