I was talking to Kyle today, and he wanted me to post what happened to my garter snakes. If you remember from about a month ago, I was panicking because my snakes seemed to be dying for no apparent reason. While some lasted a couple weeks longer than the others, they all died. The snakes had poor motor skills, and missed the platys in front of them when I was holding it. They swerved and missed the platy almost every time. They became lethargic, and barely moved around the terrium.
My snakes were fed, for about two months until they died, only platys. It looks like this was the cause of their death. I am suggesting that platys, like goldfish, contain thiaminase, which led to a lack of vitamin B.