Betta Fish: The beautiful top of my 5.5gal

This tank belongs to my male galaxy koi, Randy marsh!! I’ve had him for several months now and he’s literally the best fish ever, he always wants my attention and he’s so fun to watch!! I have red root floaters, Amazon frogbit, some duckweed, hornwort that’s burst through the top, guppy grass, and Ludwig is which are both doing the same!!