Yes, that was a bit of a head turner at £17.50 for a tiny wrasse sold in Cornwall, which still had to be shipped live to Scotland.
I doubt anyone else will have noticed ... the skipper had clearly invested a lot in his specialist pots for keeping those wrasse alive after capture.
Googling a bit, there is some controversy around the use of wrasse as cleaner fish. In principle it sounds a great solution, but not all agree ...
https://www.theguardian.com/environment/2017/jun/10/salmon-farmers-put-wild-wrasse-at-risk--sea-lice-scotland-anglers
https://www.anglersmail.co.uk/news/wrasse-conservation-calls-80469
https://www.communitiesforseas.scot/fish-farms-catching-wrasse-clean-salmon/