I have a question.. I read on this forum that sometimes you can save a fish with "Dropsy" if you use Tetracycline.. Now I don't have any fish with this but I need to be prepared. I did have one a few years ago. I live in a small town where there are no feed stores and the only pet store wouldn't carry it.. Is this an "animal" grade or is it the human tetracycline that a doctor would give you??? I can most likely have a chat with my doctor if this is the case to allow some in an emergency.. Curious to know. Thank you...