Yes they have been to the vet and are all currently on anti fungal medication. The new three I recently purchased I took them straight to the vet to be checked out. One did have a bacterial infection in its gut but they were all medicated immediately as well as quarantined for 2 months. As I stated above, I know more logs and branches need to be in the in their tank but im not adding anything further until the infection is under control... With the heat and humidity, the surroundings of frogs is constantly warm and humid. But I might have too look into something more stable.