Can Glofish live in Tonic Water?

No, it often has carbonated water in it, but small amount of quinine (which is what makes tonic water glow) should be safe as it is a treatment for Ich...like 250mg per 10gal

From wiki on tonic water...

"In the United States, the US Food and Drug Administration (FDA) limits the quinine content in tonic water to 83 ppm[3] (83 mg per liter if calculated by mass)"