I walked into my coop today to feed and water my chickens, as usual, but I noticed two of my favorites was acting really off. They were fine yesterday at 6:00 PM and both were acting like they usually should, but today they were really off. One of my serama roosters (He is a size B serama that is 2-3 years old) wasn't active much at all and just stood there staring at me while he was fluffed up. I did understand that he was sick, so I put him in one of the quarantine pens. I gave him a drop of Tylan orally and put (can't remember what the medication was called but it is yellow powder) into his water. I usually do this when ever they felt off, but then while in the pen, he was eating and drinking fine. He was still somewhat talkative when ever the other chickens screeched about a predator nearby (which was actually just me throwing a few feathers in the air to see what they would do), but other than that he was quiet and did tuck his head under his wing when he got done eating/drinking. He is always talkative and tends to get on my shoulder everywhere I go. So I really would hate to lose him! The other one is my hen, and this I have never saw before so it is making me freaky at the moment. Birchy is a size B serama that is about a year old or a few months older than a year. She usually is the one to beat up my hand so I love to aggravate her before giving her a few mealworms to go back on her good side. Today, she had her eyes closed and hardly opened them unless I pushed her. By then, she would almost act like she was top heavy and lost her balance. I felt her butt area to check if she was egg bound or something, but I didn't feel anything. She was decent on weight, not too fat nor skinny as I could just barely feel the keel bone. Her left leg did feel stiff, so I rubbed it to see if she some how broke her leg, but I didn't feel any breaks. I checked her crop and she was empty. Either way, I put her in a different quarantine pen and did the same thing that I did to Sheldon (The rooster that I am worried about as well). I made sure that the two were able to see each other to hopefully get my hen to eat. I did get her to eat a few mouthfuls of food and drank some of the medicated water. I have no clue what this is nor where this came from. The only ideas I have that could of caused these two illnesses is from the bedding in the coop and the water. I only get to clean my coop's bedding once during the spring and once before winter comes. Sometimes if it is really bad (though, it only happened when I had ducks), I would clean it out every season. Right now, I am waiting for the weather to clear up over here so I can clean up my barn. Now the water I am much more fluent on cleaning. Every Saturday I clean all the water dishes so that it doesn't grow algae and make my chickens really sick. Last weekend I was unable to because of school and activities I am in. I did not have time to clean the dishes. Today I did clean them up and felt them before washing them. The dish that the two were drinking out of (as well as many other birds as I let all of my seramas out in the middle of the coop while my D'uccles, Modern Games, and Plymouth Rocks are in separate pens so no one gets hurt) was not too slimy compared to the smaller dishes. So my question is, what is going on with my two seramas, how can I treat it, and how can I prevent it?