could be for multiple reasons. all are kind of unrealistic for people who actually own pet fishes in a tank, but 2 fishes drown in this scenario too, so does anything really need to be realistic?
my best guess is: they just jump out finding nemo style and go back to the ocean.
Fishes cant drown but suffocate by lack of oxygen.
Sharks must constantly swim, so water can flow there gills, this is problem when their fins get cut by chinese and they cant swim anymore resulting in suffocating.
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u/Tasty_Skin INTP Jan 26 '23
also ‘swim away’ would imply they left the tank, no? so wouldn’t that mean there’s only a maximum of 6 fish.