Sushi that glows in the dark has become the latest must try food craze across America.
Although not originally developed for the ornamental fish trade, it is one of the first genetically modified animals to become publicly available as a pet.
The recipes use glofish, a brand of genetically modified fluorescent zebrafish sold by Yorktown Technologies, which are available to buy in pet shops.
The modified fish were originally bred to help detect environmental pollutants. By adding a natural fluorescence gene to the fish, scientists planned to create fish that glowed when rivers became contaminated.
First researchers perfected a fish that constantly glowed, which was then bred and sold in pet shops.
The fish are available in a choice of bizarre colours – Starfire Red, Electric Green, Sunburst Orange, Cosmic Blue and Galactic Purple.
Now, they have become the latest must-try cooking ingredient. Recipes using them include ‘kryptonite roll’, ‘stop and glow nigirizushi’, ‘not in California roll’, and even a glowing pizza which is apparently best served ‘in complete darkness with backlight as the only light source.’
According to the site, the kryptonite rolls, made by mixing the fish with wasabi, have a ‘definite fishy taste’ – and a rather odd side effect of making any fish fragments stuck to your teeth glow.
However, not all of the US can enjoy them – the fish are currently illegal in California due to a regulation that restricts all genetically modified fish.
For the even more adventurous food fan, the team is also working on recipes for cooking glowing mice, created using the same techniques.