Its an odd looking fish, but not THAT bad! I'm having a problem finding its eyes though, do Chaca chaca's have eyes?! (Sounds kinda funny but serious question
)
EDIT: I found the eyes! I can see them in the second pic on the page, they are tiny compared to the HUGE mouth with very sharp looking 'hooklets'.
Are you sure these fish are safe in your aquarium with your other fish?
EDIT EDIT: This fish eats bettas in the wild
If you have any smaller fish in your tank I would take them out!