hi fellow Nutmegger , I don't see a photo . If it is an internal parasite I have successfully used PARACIDE-X by National Fish Pharmaceuticals . I had to call the company , very knowledgeable about using with L's and how much to use ,but it was a long time ago and I can't recall. It is professional grade, so if you get it, I would highly suggest calling them before using it with L's .The person I talked to said it would kill most internal prarasites. Good luck , Georgine .