Are gill flukes contagious? What causes them?

[tcarswell]

My bichir is in pretty rapid respiration. I cant figure out why the water quality is absolutely golden. I am wondering if he has gill flukes... But I don't know what causes them or if they are contagious.

Thanks for the help fellas and ladies,
Tcarswell

 

[tcarswell]

OK nevermind I found what I was looking for after a lil while on google.