Dwarf Clawed Frogs Color Change- Normal???

[ratdog423]

My two dwarf frogs changed color from their normal brown to a white. Is this normal or are they sick or something? As far as I can tell, they're eating normally and everything.

[ratdog423]

Could it possibly be that they got too cold? When I left their light on all night, they turned back to their normal color. Has anyone ever heard of this??

[gonesnakee]

Could possibly be? doesn't sound right anyhow & I would look at all husbandry aspects first. They should be kept at same temps/water quality as tropical fish. Mark