Here is my setup: 150 Gallon tank holding 2 medium Res's, an Eastern Red bellie, a juvi eastern painted, and what used to be my map.
5 Turtles, all got along great in the past. About 2 months ago my maps tail was accidentally bit halfway off by one of the res's during feeding time. The map went nuts because the tail look liked it hurt. It was a bloody lump. I fixed the tail by soaking the map in Turtle Sulfa Dip for a week in its own enclosure. All was fine.
Well last week, it looked like the tails wound was reopened, and i started to notice little white blotches (kind of like lumps of shed skin only it wasn't)on my maps tail (wound) hand, and back foot.
Now today, my map was dead. When i picked him up it looked like he was rotted to death. His hand was half gone (looked rotted), and open blister-like wound on his neck, hands, feet, and tail. Then i turned him over and along each line of his plastron, it looked like there were lines of blistery fat. Also his eyes looks blistered shut.
I have never seen another one of my turtles attack or go after him. Do you think he died of cancer, an infection, being attacked? I wish i had a picture but i couldn't get one.
Any expert advice would be apprecitated. Also, I did a complete water change. Will my other turtles catch this?
Thanks.

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0.0.2 RES's (The Boondock Saints)
0.0.1 Common Snapping Turtle (Aggro)
0.0.1 Eastern Red Bellie (Jake)
0.0.1 Map Turtle (Mappy)
0.2.0 Bearded Dragon (Yeungling,Killian)


let me try to answer your question.