makes sense, as Tapeworms seem to absorb lots of vit B12. Hymenolapsis nana is a little different than the bigger Tapeworms though. They are able to disseminate more easily due to their size so somewhat tougher to kill. Yes i have seen reports of alinia working on many species, but even if i see a study here and there, it is like a one off thing and never something repeatedly done so it is hard to know what the outcome is in a personal situation. Also other infections present make the treatment much harder as some meds dont work or work less as other infections seem to stop their efficiency. Takes lots of experience and trial and error. i have sent you a PM on a source btw.