Seems white or clear tails are not at all uncommon with A. bicinctus. And it seems they might be a sex indicator like with some of the species currently misidentified as A. clarkii.
These pictures were taken around 1971 at Eilat, Gulf of Aqaba, Israel (pictures: Hans W. Fricke, from his book Bericht aus dem Riff)
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Pairs: 4 percula, 3 P. kauderni, 3 D. excisus, 1 ea of P. diacanthus, S. splendidus, C. altivelis O. rosenblatti, D. janssi, S. yasha & a Gramma loreto trio
3 P. diacanthus. 2 C. starcki
Current Tank Info: 200 gal 4 tank system (40x28x24 + 40B + 40B sump tank + 20g refugium) + 30x18x18 mixed reef + 20g East Pacific biotop + 20g FW +...
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