Electrolytes need to be carefully administered. If you're giving it via syringe or tube, you should limit it to once an hour for chickens in extreme crisis and no more than six hours a day, and limit the overall period of electrolytes to no longer than a week. The salts can build up in the tissues and cause problems. Sort of like indoor plants that the owner fertilizes way too often and they wonder why they're dying in spite of all the fertilizer.
The runny stools may be a side effect of infection. But adding a probiotic can't hurt.
The runny stools may be a side effect of infection. But adding a probiotic can't hurt.