sea salt vs aquarium salt?

Question

Whats the difference between sea salt and aquarium salt? Like, can you use sea salt for aquariums and can you use aquarium salt instead of sea salt. My friend asked me if she could use aquarium salt for her piercing and I wasn't so sure.

Answer 1

one can be used for cooking and the other only for fish tank..yes deluted with water she could have cleansed her piercing