I have had two baby sliders in a in door tank.
they were hatch-lings when I got them
about the size of silver dollars
now a year later one is doing great
green in color
good eating habits
but the other i noticed a few months ago was getting very light in weight
to the point it sorta floats???
its outer shell looks sorta sunk in as if its being deflated??
it is eating
and does bask on its rock
its growth is a lot slower than the other turtle
any idea what could be wrong?
thanks may

