A very good article written by Valentin Thepo’t, a recent PhD student in Aquaculture who looks to identify the potential of aquafeeds and the field's sustainability. This will of course have a direct impact on the feed we serve our koi in the future. 
 
"The aquaculture industry must continue in its quest to become more sustainable, with greater use of seaweeds in aquafeeds and production of herbivorous fish among two of the most promising avenues to achieve this."
 
https://thefishsite.com/articles/a-greener-blue-revolution