I'm pretty sure that this question has been asked before but I can't find a solid answer anywhere. My father was fishing this past weekend and came across a Redfish with a blue tail. After reading about it, they say that it's because the redfish are "feeding" but I think that answer is a bit obvious. Does anyone have any ideas to share? Is it an age thing? Hormone? Water conditions (temp/salinity)? Just curious...
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