I think my acara is nesting

[FishyGirl]

I have three EBAs. One large female and 2 smaller ones a male and a female. My larger one ate her breakfast like she always does but since then has been laying on her stomach at the bottom  of the tank sometimes she will swish around. I put my net in to see if she would swim normally and she does but then she just rushed back to that spot and lays there i really hope she’s nesting and doesn’t have a disease.tested my water paremeters and temp and everything’s fine for a EBA. Please help! Thank you 

When she swims she opens and closes her mouth a lot 

[Fish Folk]

Post photos or videos. We’re eager to help, but need to see