sick sword

I have enclosed a picture of my sword I think is starting to have Ick. There is only 1 white spot on the very end of her tail & no spots on any of the other fish. I just got this & another matching sword almost a week ago. I know it is best to put them in a separate tank & quarantine for the...

I have a 36 gal bow front tank that is almost a year old. My water is good, no ammonia, no nitrite & low nitrate. Ph always around 8.0. Temp 79 I got 2 swords almost a year ago just after starting my tank so they are the oldest fish in the tank. 1 died for no reason about a month ago. 3 days ago...