Hi,
I'm completely puzzled after one of my turtles died very suddenly. On Wed it looked perfectly fine, very lively and active as usual, no strange behaviours. On Fri it's nearly dead (no strength to hold up its head or limbs, doesn't swim, doesn't eat, virtually non-responsive). Does anyone know of a disease that can kill in 1-2 days? The only 2 reasons I could think of is 1) maybe one of the other turtles attacked it and caused a bacterial infection at the wound (though I couldn't find any bite marks), or 2) a viral infection to which only this turtle is not resistant.
Any other reasons I could think of cannot explain why the other turtles were perfectly fine, while this one collapsed without warning. By the way, this isn't a turtle that I just bought -- I got it a few months ago and it was fine all this time.
The only strange behaviour I've noticed is frequent yawns and open mouths while basking. But that was ONLY on Fri (when it was basically dead), never before that.
Some background info if this helps:
Turtle size: small (1.5 inches)
Feeding: fed daily with reptomin, daily with HBH pellets, every few days with cooked pork and vegetables; amount fed is about the size as the turtle's head
Water temp: about 25 C (76-77 F)
UVB + heat lamp: 10 hours/day on the basking area (the UVB lamp is only 4 months old, so shouldn't be expired yet)
Tank size: 20 gallons
Water quality: filtration + complete tank cleanup every 1-2 weeks; fed in separate container
Thanks for any input.