, 2c worth. Little food for though. IGFA published an article that predatory fish have a different range of light spectra that is visible to them as apposed to that of a non-predatory fish and blue and purple feature well for predators. These fish are also normally found in clearer water than what we find yellowfish in so your light refraction would also be rather different. This is not to say it wont work but probability would have it that they would prefer different colour like maybe orange?
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