Bettas are one of the most popular fish species. Most people consider them relatively active, but this isn’t always true.

“Yumekasago” (blackbelly rosefish), “goso” (gephyroberyx darwinii) and “ginmatou” (zeus faber) are just a few of the fish available for “nigiri” (hand-rolled) sushi at Osakana Club Ham ...

Staying true to their name, these fish are very aggressive and territorial. Their long fins and bright colors help them attract breeding mates, who then perform a mating dance. The male creates a ...