The Fat Snook have a slightly deeper body than other snooks and usually do not have a dusky edge on the pelvic fins which most other snooks do. Also their scales are a little smaller than other snooks.
The Fat Snook gets it name from obviously being a bit fatter than other snooks but when young this isn’t so evident. But the obvious large sharp anal fin spin is very pronounced when the fish are young.
These fish can live in both fresh are saltwater and have a range that extends from north of Florida all the way down to South America.