Blue Line Grouper

The Blue Line Grouper, *Cephalopholis formosa*, is a striking and moderately sized grouper species native to the Indo-Pacific region. Its common name is derived from the distinctive bright blue lines that run horizontally along its reddish-brown to orange body, creating a captivating visual display. These lines are particularly vibrant when the fish is healthy and comfortable in its environment.

A minimum tank size of 180 gallons is recommended for the Blue Line Grouper due to its potential size and active nature. While generally peaceful towards tankmates too large to be considered prey, they are predatory and will consume smaller fish and invertebrates. Therefore, careful consideration should be given to tankmate selection. They appreciate a well-established aquarium with plenty of live rock providing caves and hiding places, mimicking their natural reef habitat.

In the aquarium, the Blue Line Grouper will readily accept a varied diet of meaty foods. Offer a mix of high-quality marine pellets, frozen shrimp, squid, and other appropriately sized frozen or live foods. Feeding should be done regularly to ensure proper growth and health. They typically reach a maximum size of around 12 inches in captivity. The Blue Line Grouper is considered to have an intermediate care level, requiring stable water parameters and a suitable environment to thrive.