Fresh-, saltwater species of region will be featured

The Cabo Pulmo coral reef tank features a number of colorful saltwater fish species, including the Mexican lookdown, Guineafowl puffer, convict surgeonfish and horn shark. The exhibit is part of the larger Warden Aquarium, which will open Saturday at the Arizona-Sonora Desert Museum.

Fresh-, saltwater species of region will be featured

Stephane Poulin, right, the curator of reptiles and fish at the Arizona-Sonora Desert Museum, gives volunteer Cyndy Wicker a preview of the exhibit area.

Fresh-, saltwater species of region will be featured

A balloonfish seems to be interested in what's going on outside his watery domain. The species is one of several that will be on exhibit at the new Warden Aquarium at the Arizona-Sonora Desert Museum.

New Desert Museum aquarium exhibit to open

The new Warden Aquarium is first major new Arizona-Sonoran Desert Museum exhibit in a decade. The aquarium features several dozen species of fresh- and saltwater creatures in 14 tanks, representative of the waterways that once flowed through the Sonoran desert region to the Sea of Cortez.