Do you think this is bloat?

[Azhael]

My animals sometimes eat snails and they have always pssed them down with no problems. I seriously doubt that´s the cause.

The most common types of bloat are usually caused by infection (indirectly caused by inproper care), but there are other possible causes, it´s hard to tell.

 

[RobM]

Unfortunately I lost the one in the first pictures, it was my favourite as it was always the most responsive :-(.
The other one appears to be fine, still has darker skin, but is not balloon fashion in texture. Do you think it would be safe to put this one back with the others now? It has been 3 weeks.