Pic from a friends tank and behavior described as the following:
The male (the larger one)* stopped eating about a week and a 1/2 to 2 weeks ago. He still comes out and swims through the cloud of food during feeding time but does not eat any. He has yawned at least once so it seems mouth is functioning. The fish Swims just fine and doesn't seem to be listless or breathing quickly or have any other signs of stress. And when compared to the female who has a more over all streamlined body the male looks more like it has a John Goodman-esque double chin and flared cheeks. *sec assumption is based on size alone as they were the same size when purchased months ago.

The male (the larger one)* stopped eating about a week and a 1/2 to 2 weeks ago. He still comes out and swims through the cloud of food during feeding time but does not eat any. He has yawned at least once so it seems mouth is functioning. The fish Swims just fine and doesn't seem to be listless or breathing quickly or have any other signs of stress. And when compared to the female who has a more over all streamlined body the male looks more like it has a John Goodman-esque double chin and flared cheeks. *sec assumption is based on size alone as they were the same size when purchased months ago.




