I'm pretty positive my female angelfish has internal parasites, stringy white poop constantly, skinny barely eating and lethargic. So after digging around I found my old 5g and put my betta in there with an airstone and my angel is in a 20g alone. She's not eating and I'm worried that my whole tank is infected. No one has shown any symptoms and I removed her as soon as she had two white poops in a day. She had only gotten worse and stopped eating once I moved her two days ago. Should I get meds and dose everybody? what is a good parasite med? I was thinking Prazipro but it's quite expensive without shipping and won't be here for at least two weeks so is there anything else? Keeping in mind I have scaleless fish (cory cats and loaches) so what dose?