If you offer electrolytes in their water, be sure they have a source of plain water too.
THIS!!!!
I give electrolytes once a week in hot weather (hot by central NC standards), and have been using Sav-a-Chick packets (but am looking for a bulk container because I do, after all, own measuring spoons.
But I always offer it in a separate waterer with plain, fresh water in all their usual waterers.