I have had some pretty good success with Inland glow in the dark.
https://www.amazon.com/gp/product/B00YSP3NUW/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Make sure you use a hardened nozzle though. Glow in the dark filament id extremely abrasive and will quickly chew up a standard brass nozzle! It will go from an opening like this \\".\\" to an opening like this \\"O\\" by the end of your print!
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