The Fish unwisely revealed in his recent thread that he is physically disabled:
Amusingly, actual carp can see more colors than humans, up into the near-ultraviolet: Carp, therefore, is strictly visually inferior to carp.
Blue–Purple discrimination is worst in protanopes—people who have wonky or absent red-sensitive cells in the retina. Since we don't know how 'partially' colorblind he is, I uncharitably assume he is maximally impaired in red perception.
And this is how he sees the world:
](/images/1651878185847281.webp)
](/images/16518781859657369.webp)
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Supplemental Information
Citations
Popular Overview: carpology.net — "Inside a carp: vision"
Academic Reference: Neumeyer, C. (2003). Color Vision in Fishes and Its Neural Basis. In: Collin, S.P., Marshall, N.J. (eds) Sensory Processing in Aquatic Environments. Springer, New York, NY. 10.1007/978-0-387-22628-6_11
… AND Golden Fish in Title
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A whole website for dumb fish
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