My red platy has a big white dot in it's body. I don't think it's ich because it doesn't look like salt and it's just one dot. About a month ago my fish had ich but I treated them with API super ich cure powder packets and they healed. I have had my fish for 2-3 months already. I also think my platy is pregnant. I currently have 3 day old fry from another platy in my fish tank so will medication hurt my healthy fish? Is my platy ok???