If it's a white crust that comes and goes just around the nostrils, it's normal. They excrete excess salts that way. You don't need to worry about it or remove it - it will generally brush off by itself.
Anything bubbly or mucous-y is not normal.
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Torey
Eugene, Oregon, USA
1.1 Saharan Uros (Joe and Arthur)
3.1 Mali Uros (Spike, Turtle, Tank, and Lilly)
1.1 Ornate Uros (Scuttlebutt and Shazzbot)
0.1 Collared Lizard (Rorschach)
2.1 Green Anoles (Bowser, Sprocket, Leeloo)
1.1 Chubby Housecats (Roscolux and Jenny)
