Smudge Spot Cory Cat (Similis Corydoras)
The Similis Cory Catfish is a less common species of the popular Corydoras Catfish family in the fish keeping hobby. Also known as the Smudge Spot Corydoras.
Current size is around half an inch to just under an inch. They are mostly bottom dwellers though they'll swim all around the tank when comfortable.
They do great in smaller sized community fish with peaceful tankmates.