You should hold off with Electrolytes and discontinue Vitamins until you're done with just Corid in plain water. Like Wyorp was saying, no Vit B as Corid is a Vitamin B1 blocker and that's how it works to get rid of the Cocci who are dependent on B1 to thrive. Corid really does work in solving Coccidiosis so long as you do it right. Give the levels described in the "Drench," and by Wyrop and they'll be fine even if they don't have it. I've dealt with this one time with chicks and Coach123 and Wyorp advised me through it.