For those interested, Catfish, or as they are called in South Africa, Barbel or Barber (afrikaans) do eat flies as well

Made a popper dropper set up I saw on a youtube video for largemouth bass, and caught this catfish, ate the streamer (a carp fritz with a green tail https://fishthefly.co.za/carp-fritz/ with about 2ft of line below a foam frog pattern) in the end