From what I can see through all that dirty water is a tort with healthy looking legs....not fat not skinny...
However, may I suggest that if this set up is how you are offering a soak---please add more tepid water...you really want the level of water to be high enough to just barely go over the spot where the top and bottom shell come together and even a tad more is fine as long as your tort can comfortably scoot about with his head above water...