What fish fan, or even “regular person”, can resist these active, droll little creatures!? Always on the go and very fond of company (mixed species schools are commonly-formed), Corydoras Catfish are best provided with sand into which they can plunge their long snouts while foraging. All share a common body plan, but patterns vary widely among the nearly 200 known species. As longevities of over 20 years are not uncommon if their simple needs are met, it’s easy to see why many folks become very attached to their “Cories”!