Just starting up a new tank, ive decided to chuck in some goldfish to get the cycle going, as ive been told they are by far the hardiest things around. Its been two weeks, ive already lost one to i think whitespot. But its weird... He started with a few white dots, they went away in a day as i started to treat the tank straight away, then he remained really lethargic for the next 3 or so days, laying on any plant or rock he could find. And now he's dead. All the others now have whitespot, but only marginally, with a few spots here and there regardless of the fact that i continued to treat the tank. 2 more of my goldies are now really lethargic, my favourite is constantly sitting on the bottom of the tank. Is he going to die??? Should i isolate him, or continue treating the tank as a whole. And is this really whitespot as i didnt even think goldfish could catch it. Why everytime i start a tank do my fish die to whitespot!!!??? Would really appreciate some help, ill cry if they die..