This male extremely red Firemouth has been discovered.
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Wow, very interesting. Do you know if it has been line-bred for these colors?
You mean that dark spot on the gill plate and the few others on the dorsal line?Leucistic fish do not have black markings. This one clearly still has its black body markings. It’s more likely a hormoned or color-fed fish, as that is not natural color for a firemouth.