Tom C has numerous populations of N. unifasciatus including the super-red form, some of which he collected himself. There is indeed a widely distributed population of N. unifasciatus in the hobby with no red/orange pigment in the caudal but it is not the only one regularly available today. Both Wetspot and Aquatic Clarity commonly have another population from Colombia with red/orange pigment in the caudal. Wetspot had them two few weeks ago and Aquatic Clarity has them now. He lists them as being from Brazil but I'm quite sure they are Colombian. They are not the super-red form but they do have color in the caudal other than black. I have some here. I until recently also had the super-red form which Wetspot had gotten in on two occasions years ago. Fingers-crossed that they do so again.Look at the pictures tom has for his uni and read the interesting statement on attempts to breed them. The ones today might be the same species but they are nothing but black.
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