Sorry to add to the somber mood here..
I was out yesterday and when I came home I found my male ACF upside down in his tank. It was a complete shock because he had no symptoms of any illness. I got the net and fished him out and realized he was still alive when he started moving. I quickly brought him to the surface so he could breathe and he took some gulps of air. Upon moving him to a small quarantine tank I realized he can't move his back legs. I don't know if he broke his back or had a stroke.. I feel so sad for him, his little legs just flop. He's in the quarantine tank with shallow water so he can breathe. He's been shedding and eating his shed, but I can't keep him in there forever. He's pretty lethargic. He's one of the dyed albinos (got him before I realized it was not humane) and he's always been a little "off." He would swim back and forth and bump into the tank walls sometimes and he always appeared to have barrel chest but I feed him a varied diet of pellets with occasional blood worms. I wonder if it was a deformity? It looks like his sternum just kinda sticks out. Maybe it was a growth that got to the point where it's compressing a nerve? My other frog is fine, I checked the water that same day and it was good, no ammonia just a tiny bit of nitrates (water is due for a change)..
So anyways I hate to say it but I think I will have to put him down soon. Is the freezer the best way? I really don't want to do it but I don't want him to just sit in that shallow water and wait for death..
Any advice?

Thanks