Heavy breathing, shaking fins, scratching...whats wrong?

[Stefan3289]

So I currently have a 75 gallon with two severums and two acaras, and I noticed one of the acaras and one of the severums were shaking their fins, the acara was breathing heavy and swatting his body with his fins as if he was scratching. After 15 seconds it stops and then doesnt happen again till later. What could this be..Gill flukes?

 

[Colin_T]

pictures and video of the fish doing this?

it's probably a territorial display

 

[Stefan3289]

@Colin_T apologies for not replying earlier but it’ll be hard as usually whenever I get close to the tank they think either it’s food time