guppy sickness

Hello! I recently adopted a few female guppies. One of them, Cephia, is dealing with some fungus around her mouth. She is in a 1-gal hospital tank being treated with Kanaplex. Today is the 4th day. I gave the second dose yesterday. Yesterday she was looking great, back to eating, swimming...

I have had my 4ft aquarium for about 6 weeks now and have only a few fish in it. I cycled my tank correctly before adding fish. Now my guppies have started getting sick and dying. So far it has killed 4 females with another 2 currently infected. It starts by being white and swollen between the...