Flicker, the high red northwestern male, just turned cloudy too but I noticed his colors fade before that. For the most part, northwesterns aren't really big on soaking unless you're keeping them very dry and low humidity. In fact, my concinnus don't pre-shed soak either, for the same reason. As you know, I'm using fir bark / coconut fiber and moss. I keep an area of it damp, letting it dry between spraying. This helps keep an adequate humidity level in the tank since the heat sources can make way too dry if you don't spray. Ever since he went cloudy, he's been spending all his time buried in the damp area with his head sticking out. Given the option, concinnus and northwesterns will choose settling down damp substrate and high humidity over soaking. Those conditions are possible and preferable so long as it dries out quickly so I spray daily or every few days, especially for babies, and snakes in shed.