Panther grouper (Cromileptes altivelis)Every time I need to make a point about marine fish that are sold as small, cute juveniles but grow into real behemoths, the panther grouper (Cromileptes altivelis according to Fishbase/Chromileptes altivelis according to ITIS) is one of several species that come to mind immediately. But despite its indisputable tankbusting tendencies, C. altivelis is very hardy, interesting, and well worth its sea salt if you have the space to spare. Physical traitsLet’s get right to the panther grouper’s tankbusting size—which isn’t exaggerated, by the way. This Indo-Pacific species can grow to exceed 27 inches in total length. Even specimens that fall well short of that maximum are still fish to be reckoned with. White to light brown in base coloration with black polka dots all over its body and fins, C.
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