Old timers like my late father didn't have a cabinet full of do this and do that meds.more than likely three or four things at the most. Bi-Carb,Epsom Salt,Parrish's food and maybe charcoal tabs,anything else was a bonus. If the birds weren't exercising well by mid week,quarter a teaspoon of bi-card in a cup,pour just a little boiling water on it which make it burst (mothers words) top up with cold water,quarter teaspoon Epsom salts added and poured into a drinker.NO it does not blow them out,if anything droppings are better.Given Wednesday evening. Wouldn't be surprised if the late Bilco's XEREX was mostly bi-carb ????