If, perhaps, you are prepared to get up around three or four am in the morning and only return to bed much later that night, say around midnight or one am, you might be in physically, and mentally good shape to take up this business.
The analogy just given is to put things in the extreme, but even so, say now you were to romanticize on the life and times of the seafood merchandiser, you will soon see that the life is not as easy as the one you have been leading up to now, in fact, far from it, very far away from it.
While you are still sleeping, your seafood merchandiser has already hit the floorboards of the seafood docks. This is one heck of a busy market. It is where all the city's leading fish mongers gather to scoop up the freshest stock possible. While they are very much appreciative of the hard toil that the seafaring fishermen have to put up with, they are still going to attempt to drive a hard bargain, because that is just the way it's done.
Much later in the day, the seafood dishes that the seafood merchandiser wishes to present to his demanding but loyal clientele needs to be as affordable as possible, or at least he should be able to charge a competitive price. It is wondered just how quickly the tides changed. Once upon a time fish was so much in abundance. Now it is becoming scarce and prices are quite foreign to the locals. The fish merchandisers need to be quite innovative with his seafood display in order to reel in the customers again.
Keeping live fish in tanks in the restaurant remains a popular idea.