Hello! I hatched around 9 button quails a few months ago (Mid February). Around two months ago, they started laying eggs, including the two quails I am about to talk about. About a month and a half ago, we had a problem. One of the quails ended up being sick. She had her feathers puffed up and she was sitting in the corner not interacting with any of her other quail mates. We isolated her and put her in her own cage with a heating pad and water. She did not want to eat at all and didn't even open her mouth when we put water on it. Eventually, she pooped this clear mucus egg-white like substance. This mucus would dry pale yellow on paper towel. We took her to an overpriced emergency vet who agreed immediatedly with our suspicion that our quail's egg cracked inside her and she had egg peritonitis. He offered us antibiotics and pain relief/anti-inflamitory drugs to be orally administered. He also injected the quail with a "hydrating water patch" in her thigh (or so I remember). 30 minutes after the vet visit, the quail passed away. Later that night, we came back to the cage and realized that she had layed an egg that same day. Is it possible to have an egg crack inside of her the same day she layed an egg? A month later, we had another lady with the exact same symptoms. Using the same medication we were given by the vet, we treated the girl. After the antibiotics were administered, nothing happened. However, after the pain relief/anti-inflamitory drugs, she lost all of her energy and passeda away. I've been scouring the internet looking for an alternative sickness to egg cracking inside the chicken because one of our guys is begining to show the same symptoms. I found that it could be coccidiosis. The sick birds show every symptom except blood in their poo. However, the vet pointed out this tiny black dot in their poo and mentioned that the egg shell could be causing tears in their egg passage. I thought this might have been a scare tactic to convince me to drop $400 to leave the bird overnight. I bought corid. Could I treat my birds with Corid "just in case"? What is the dosage? Is it just normal chicken dosage? Or do I do less because the birds are so tiny. Also, do you guys have any idea what other sickness it could be?