Caviar is often seen as a fancy treat, enjoyed mostly among the posher folk of society.
The fish eggs are usually eaten as a garnish or spread, and its high price reflects how rare the fish is.
YouTuber Max Fosh, however, decided to take a different approach with some caviar he bought from the supermarket.
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'Instead of eating these fish eggs, I've always wondered if I could turn one of them into a fish,' Max described in the video.
'With some tender loving care, could I turn one of these black blobs from the supermarket into a living, breathing being.'
What's his reason for doing so?
A couple of years ago, Max admitted to catching his own 'fish and chips from the Thames' and wanted to give a fish's life back.
After buying his freshly tinned caviar, Max realised after a little biological thinking that he needed to find a way to fertilise them - he needed to get some fish sperm, otherwise known as milt.
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Initially, he attempted to gather some from the shop but much to the fishmonger's confusion, he was unsuccessful.
After some research, he came across a fish farmer called Simon who showed him how to extract sperm from a fish using a syringe.
However, Max ran into another problem. The caviar he bought earlier was from a sturgeon whereas his fish sperm came from a carp. So, his next quest was to buy some carp caviar.
Once he had everything he needed, Max put the eggs in a tub of water, added the sperm and left it in sunlight as per the instructions he was given. After two days with no results, he added a bit more sperm.
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32 hours later, success!
'We have life,' he exclaimed. 'Look at them.'
One little fish hatched from the eggs and Max tended to it like a 'protective mother.'
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He fed it tiny pieces of plankton and watched it grow very quickly over the next few months, upgrading him to its own fish tank - until he decided to set it free. Well, a friend's pond, but he did find the goodbye quite emotional.
And so did his viewers.
'That was the most emotional shot of a fish being thrown I have ever seen,' the first user wrote.
'This was way more emotional than I expected,' one person added.
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'this was really wholesome but as someone who knows a thing or two about keeping and caring for aquatic animals I had several moments where i screamed at the monitor when he almost killed the fish,' another commented.