There always seem to be lots of grey mullet in marinas so I’ve assumed they are not too fussy about water quality.
They're often seen grazing near sewage outflows quite happily. Om nom nom, but that's why you will sometimes see the ones in fishmongers marked up 'bay mullet' to indicate they're from different waters. Certainly a question worth asking if you're buying them.There always seem to be lots of grey mullet in marinas so I’ve assumed they are not too fussy about water quality.
Tend to agree, there's better eating fish.In my humble opinion, no and I'm a fairly enthusiastic fish eater, having fish about twice a week.
Peter.