If you haven't seen #seaspiracy yet please watch it. My first job at 16 was as a fishmonger () & I eat a fair amount of fish.

I can't imagine not doing so (sorry seaspiracy), but it's definitely got me thinking about buying more sustainably, if that's even possible? Any tips?

Am also going to let you in on a secret about your friendly supermarket fish counters (this may have changed since I was 18 but I doubt it).

Happy to be corrected, though

Those fish in the little branded packs, freshly wrapped in store? They arrive in a lovely box, packed in ice. At this point they're probably a day or so old. They get wrapped.

They then get rewrapped after a couple of days with a new best before date (unless they're off)

If they look a bit manky, they're reduced that day. The policy in the shop I worked at was that they could be rewrapped twice before being reduced.

By the time you buy that reduced fish it's easily almost a week old.

It rarely causes any problems, and I doubt it's anything new, but if you think your fish is super fresh, it probably isn't. I doubt supermarkets have changed this policy all that much.