Yesterday I found about 40 tadpoles in a small puddle that was drying up quickly so I got a bucket and carefully took all of them inside. Some of the had had arms and legs and were losing their tail so I put them in shallown water where they can be on the edge. I put the rest in a 15 gallon tank with spring water. Then they all started dieing off I think I lost 15 in less with 5 hours so I moved them to a water bowl again with just spring water and this mourning I found 3 more dead. What can I do to stop this disease or is it a disease?