Young occur singly and commonly found in tide pools. Adults are commonly seen in small groups in midwater or near the surface.
- Randall, J.E. 1988 Pomacanthus rhomboides (Gilchrist and Thompson), the valid name for the South African angelfish previously known as Pomacanthus striatus. Spec. Publ. J.L.B. Smith Inst. Ichthyol. 46:7p. (Ref. 10629)
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