So just two days ago my female swordtail gave birth and I put them in mesh breeder's net in the main tank. But yesterday.. to my horror.. I notice some small white spots on the male and female swordtail. I didn't know what to do because of the fry so I quickly took out the male and female swordtail and put them in another tank. I've been treating them with Quick Cure. They're really active and eating well but you can't deny there's white spots on them. Now I'm just worried that the Ick might still be in my main tank.. I have a pretty old Dalmatian Molly who seems to be lying around a lot but he eats everything and there hasn't been any rubbing against objects. Not sure if he has Ick.. I want to treat my Main tank but I don't know what to do since the fry are in there :-[ I've been reading that salt can be used to treat ick.. but can the fry tolerate salt? and if so, how much can be used on a 20 gallon tank to treat ick?