Posted: Sat Feb 07, 2009 2:54 pm
Yes, the tank water has to be changed (depending on the tank size, full or partial changes), and the smaller the tank,nthe more often it should be done. If this happened in the past and your turtle improved with clean water, perhaps this is telling you something...If all four are in the same tank, how big is it?
It would be good to separate the sick one and give her her own set-up, with the water temp a bit warmer than usual (81 - 82F) and the basking area 90-91F). Rub a little cod liver oil on the eyelids once or twice a day for several days and see if this helps. If a Vit A defiency is involved, there should be some improvement. Try to get the turtle to eat something, even if it means holding a bit of something smelly under her nose in the water so she can smell and and take it. If the condition remains the same or worsens, find someone who knows about turtles and have the turtle checked out.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-