[ars]

> compare to natural fish

You mean compared to wild fish. Farm raised fish are still natural.

But in any case, even if there was a lot of antibiotic usage, the point still stands: There will not be a shortage of fish.

[amag]

Uhm, well, given that 1kg farmed salmon needs 2kg wild caught fish, there may still be a shortage of fish...

[ars]

Tilapia eat vegetation, you can use them for feed.

Why does the salmon feed need to be wild? Why can't it also be farmed?