I think I have a respiratory thing going around the coop. So far 4 chickens one by one have gotten what appears to be an eye infection. A couple of those had a little drainage from their nose maybe a sneeze from some of these birds. When it started I gave everyone Duramycin-10 (Tetracycline Hydrochloride) for use in poultry. The Vet said it should work fine, and the ducks could take it too, but they were more sensitive than chickens and to dulute the solution some. Things cleared up. But then it came back. The weather has been SO hot that when I tried the solution in the water again the water just turns black in the heat!!!! I'm not sure I need to get something else to give them. This is the only thing TSC carried at the time I went last time, and probably all they have now. I can get something from my Vet today if I need to all I have to do is call and ask for what I need (I have THE BEST VETS and luckily we live in a farming community so they treat everything) My concern is this. My ducks live with the chickens and my Drake - Leonard is keeping his eye closed this morning and the edges of it look irritated. Which is how the chickens eyes started! My Leghorn rooster is still having a problem with his eye, even tho the other chickens all seem to have their eyes clear up on their own or with ointment. My rooster - well like I said he is a Leghorn...LOL no catching him in the daytime without a net! His eye has taken the longest to clear up. I'm not sure whats going on and the heat I'm sure doesnt help matters. (maybe now that its cooled off it'll get better). But my Drake I'm really concerned about. Ducks are not AS resilient as chickens, and I'm so attached to him, and so is his mate Lucy! He could have just scratched it himself. The problem with this powdered antibiotic is the dosing!!! OMG....its terrible! Its in ML per gallons and I just dont even know how to measure it correctly so I'm probably under dosing them BIG TIME! Can someone help me with some medications, dosing information on what I have (Duramycin-10), whats worked for them or what I should get, or should I just call my vet!?! I'm really getting frustrated! Here are some pictures! Here is Leonard Leonard with his eye open not good he kept waddeling away from me! LOL My Leghorn Rooster...you can kinda tell his eye is a little swollen, but he can open it, and the eye itself is fine, he can see he just keeps it closed On my of hens that has been having the same problem, she has had her eye medicated and I originally thought she was attacked because it happened right when I introduced her to the big birds right after I got her, she was seperated from my original flock for about 3 weeks, then her eye was injured like the next day after the introduction, but then other eye problems began, in just one eye from the other 3 birds...and now my duck. This is what it looks like still about 3 or 4 weeks later. hard to see she never stands still i really appreciate any help I can get from you all!