So sorry to hear : / By varied fish diet, what kinda of fish? What sources? Unfortunately the obvious neurological damage that was there makes me think thiamin deficiency from feeding thiamanaise carrying fish (and enzyme that blocks the uptake of thiamin aka B2). Also I kind of wonder if she was getting too much of any fat soluble vitamins if you were supplementing her water. Really not sure what those symptoms would be. Many of us that do a varied worms/pinks/safe fish (and sometimes frog legs) diet don't really even supplement. I could see throwing a bit of calcium in if you can't get one to feed on pinkies but that's all in my mind you should need.