I have been thinking on this more. This would be a great way to have homemade medicated fish food. Just add your antibiotic, sulfa drug, etc. in an amount which will provide adequate medication to the amount eaten, fish size, etc. I have to drive 40 miles just to pick up medicated food, no local FS even sell it.
I have noticed that the Asian stores sell things like dried shrimp, dried fish, etc., so even the meat eaters are treatable.
With DIY tools like this, and this knowledge developed and available, it seems more hobbyists might go from amateur to professional breeds and raisers of fish. It now strikes me as funny someone has not worked this out before; or, have they, and are just silently enjoying the profits? LOL