Sorry to confuse things but I disagree with the Kole. I have one in my 170 and it loves swimming. Much more so than my yellow. If one must put a tang in a 75, then I would lean more to the yellow, purple tangs or the best, IMO< for a smaller tank, would be a Scopas tang. I also think the Scopas is a great looking tang.
Also FWIW, I would never put a Regal in a 75. At least not in adult size. They just get to large and love to swim.
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Doug
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