For hobbyists inclined to purchase livestock on impulse, a yellow boxfish (Ostracion cubicus) paddling about in a dealer’s tank can prove almost irresistible. Typically sold as juveniles at just a few inches in length, these boxfish are as cute as can be, and their interesting shape and garish coloration really make them stand out among other species offered for sale. Unfortunately, that cuteness and bright coloration are fleeting, and too many impulsive hobbyists who succumb to the siren song of O. cubicus soon discover that they’ve bitten off more than they can chew with this species. Physical traits As its common name implies, O. cubicus has a vaguely box-shaped body, a pointed snout, and high-set eyes—picture a somewhat squared-off pufferfish, and you’ll get the gist. Juveniles are bright yellow with dark-brown polka dots. More: Yellow Boxfish: Endearing but Perhaps Best Avoided… More:
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