There was one at an educational aquarium here (now closed) in Grand Junction. They called it a Hog Nose for short. They said it came from Vietnam. Same size as the one you're showing. It had a very large tank to swim in.
Here are the before and after pictures of a typical daily spread: aloe vera, soaked Mazuri, Italian parsley and other mixed greens from backyard, hibiscus flowers, hollyhock leaves, sunflower leaf (moderation only), Russian sage, Blue sage, rose petals, And for snacking...the grass.