If it's a deep freeze and was OK when you put it in, it would be edible even after several years.
Most fish will remain safe to eat for up to six months. Fish that are fatty, such as salmon and tuna should keep for 2-3 months when frozen. Fish that are lean, such as cod and catfish will keep for up to 6 months when frozen. It would not be safe to eat fish that was frozen for 2 years because it would most likely be spoiled and could cause food poisoning.
no
no eating frozen fish is not good for you, any kind!
NO!
no
no
No
Safe - quite probably Tasty - probably not.
Honestly, fish isn't very safe at all to eat! People dump wastes and other toxic materials into the ocean, and the fish inhale and eat it. But the safest bet is eating the tanked fish.
absolutely nothing should be eaten that has been frozen for 10 years fish or anything else.
Microbiologically, it would be safe. Palatability is another question.
It is only safe to eat if you want food poising