I FINALLY located some Tylan 100, but it is for 500 gallons of water. Does anyone know the correct conversion for one turkey?? She is fully grown (6 years old), but down to 4.5 pounds now. I don't want to give her too much or too little. I REALLY need help.... AS SOON AS POSSIBLE!!!! Thanks!!! My Rosie is still hanging in there.... incredibly. Please pray that this or something will help her. Thank you!!