OK i have two tanks, my main tank is up and running with healthy fish, but my question is about the other tank. I have two guppies in the other tank that both have finrot. I presume the fin rot was caused by overcrowding in that tank as it was only 10 gallon and i had exceeded the 1 inch per 1.5 gallon rule. Now they are the only two left in there, i have placed jungle treatment for finrot and have not noticed it getting worse but i have not moved them over. My question is.... If there two have finrot will moving them into new tank cause it to spread to other fish?