That's a very interesting concept. I've worked in aquaponics before so I've also been intrigued by the idea of being able to recreate sustainable ecosystems. If I had the time I'd love to be able to create a database and 'calculator' or sorts where you can enter inputs such as the type of herb crop you'd like to grow, and going by the preferable water salinity, pH, ppm, ds, and a few other criteria, you'd be given options of what crustaceans and fish you'd be able to incorporate into the ecosystem. It's a huge endeavor, but I believe it's something that would have a tremendous impact on society since too often there's reinventing the wheel with this type of stuff and that destroys the runway for a lot of startups that have grander visions.