Black Beard

[sapphire_moon]

I was wondering........my mothers bearded dragon gets a very black "beard". What could that be from, he has weak back legs, is on a "calcium supplement". He (as of tonight) been seperated from the other beardie. He was having a soak........(his sides are VERY crinkly) and he dunked his head under water, and would not lift it up, so he got taken out of the water. A few minutes later he regurgated....What could that be from? As I mentioned he has very weak legs, not very big 1/4 of a pound, at about 1 ft (with tail). I kow it could be internal parasites or crypto, But I was wondering what other people think. This is not my bearded dragon and have already suggested they take him to a vet........as they refuse.