I have a sick peachic who is about 4 months old. We brought here home about 3 weeks ago with 2 other peachics. She has had droopy wings and general lethargy for about three days. I isolated her yesterday , made her warm, and she did eat some. I have tried weighing her and want to give her some safeguard but can't seem to figure out her dosage. I'm really afraid that I've waited too long to start treatment. The other peachics seem ok. It's just gotten cold her so I'm trying to get everyone warmer! Please help