[2] While the greengill's appearance can vary from individual, they usually have certain morphological traits that are common throughout this hybrid.
In aquaculture greengill can reach sizes up to 12 in (32 cm) and weigh around 2 pounds (965 grams).
They can reach these sizes in captivity more regularly in part due a faster growth rate than both parent species.
The foreground coloration covering most of the body is usually dark green, brown, or black.
The rims of the soft dorsal, caudal, and anal fins will usually have a thin orange ridge running along them.