Behind the investment are Cassandra Köbbel and Anna Wångmar.
Both were a little nervous before the auction started and wondered if anyone would even come.
But afterwards they were jubilantly happy.
They had hoped for maybe a hundred bucks for a wooden box with half a kilo of fresh sugar tongs - but the prices rose quickly, and the last box went for 850 kronor.
- Abroad, seagrass and seaweed are huge products.
So in a few years we will surely have much more of this, thinks Roger Thilander, CEO of Gothenburg Fish Auction.
See how the premiere went in the clip.