I came home to this today

She's in 180g. Tankmates are 3 silver dollars, 3 peacock bass, and a male pearl ray. All the other fish are fine and just as hungry as usual. I did a water change last night, I normally do 40-50% every 3-4 days. She's never been as active as the male, she tends to stay on one side of the tank. Eats fine but not as much or as aggressively as the male.

I have no idea what could've caused this.

She's in 180g. Tankmates are 3 silver dollars, 3 peacock bass, and a male pearl ray. All the other fish are fine and just as hungry as usual. I did a water change last night, I normally do 40-50% every 3-4 days. She's never been as active as the male, she tends to stay on one side of the tank. Eats fine but not as much or as aggressively as the male.

I have no idea what could've caused this.