Okay so my betta's fins are getting kinda greyish and I don't know if that's normal, but they aren't splitting or anything so it's not fin rot. Plus he is yellow to begin with but seems to have these little red vein type things where his fins connect to his body. They weren't there before. The internet leads me to believe it could be Septcemia or something like that. My spelling is SO off but it starts with Sept. Anyway, internet suggests Macaryn two, what's the difference between that and Melafix? Any light you could shed would be fantastic. Thank you.