Need advice - glow in the dark PETG and nozzles

First, I need the best (longest lasting, brightest) glow in the dark PETG I can find. PLA isn’t suitable for the job I have in mind.

But second…I know that glow in the dark filament will erode a brass nozzle, and with the K2plus having those long, expensive ones, I’d rather not turn it into a short lived thing.

Does anyone know if Creality have a hardened steel version?