GFP (Green Fluorescent Protein)
A variant of Axolotl (Ambystoma mexicanum)

Representative Axolotlphoto — a dedicated image of this exact morph isn't available yet.
A transgenic line carrying a jellyfish GFP gene that makes tissue glow green under blue/UV light; the gene can be combined with any base color morph.
Keeper tips for this variant
Skip routine blue/UV viewing lights — keep lighting low and brief; the fluorescence is a novelty and constant bright light only stresses the animal and promotes algae.