I add hamburgers to my water. Fish love hamburgers and it makes them feel happy, and provides an already present amount of electrolytes to their life. I've also recorded an interesting color mutation while adding hamburger to the water.
Before I added hamburger to the water, my fish were fine, perfectly happy and healthy as can be. Now that I add hamburger I notice that my fish are colored differently, swim and behave differently.
I suggest that everyone who doesn't add hamburger to please try it out. There are no studies thus far that say it is bad to add hamburger, and in my experience, it has done wonders. Not to mention how daily feeding has dropped down to never feeding because the hamburger provides other needed and un-needed nutrients as well
The best way to introduce aquarium hamburger into the water is to blend it up, put it in an eye dropper and when fish swim by you shoot it out in there eye.