Alternative housing for Xenopus laevis.

At the authors' facility, housing arrangements for Xenopus laevis were cumbersome and labor-intensive, requiring technicians to wash frog tanks by hand several times a week. The authors describe an alternative housing solution they implemented by modifying a rack system that was originally used to maintain zebrafish. The rack's self-contained water circulation and filtration system saved technicians time and labor, and a commercial chiller attached to the mechanism efficiently controlled frogs' environmental temperature.