I recently got a female fh and had her in a 20gal, seems like she didnt eat much Then i added her to a 60gal with my male fh. I used a divider to seperate them. The next day i saw the female have white stringy poop. So i moved her back to the 20gal. I found out has some kind of interal disease. Could her disease be contagious n could of spread to my male flowerhorn? Seems like hes breathing hard now, and seems to chill by the corner at times and sits low. Is he infected???? How do i cure the female???