No. You're specifying a food that has higher energy because you want the fish to grow as rapidly as possible, and you're specifying a food pellet that will not dissipate into dust when it leaves the fish as a fecal pellet. You want the fecal pellet to be somewhat cohesive so that it can be filtered out, because you're filtering all of that water.
So those kinds of things, which you're asking of the feed producer, do raise the price.