Mycoprotein is changing the aquaculture industry by meeting the nutritional requirements of different fish species, and providing a high-quality and sustainable protein. Mycoprotein's unique attributes cause faster growth rates, better feed efficiencey, and improvements to the overall health of the aquaculture species. It is evident that the demand for sustainable aquaculture is growing, and that mycoprotein must be included in fish diets if we want to protect our oceans and ensure the future of seafood aquaculture.