A turtle, an anole, and a sick tree frog

“We have had a female gray tree frog for over a year now. Within the last couple months it has developed a growth at the back right hind leg. Could you give us some incite as to what this may be. the tank is at 80 degrees and we have perches for it and a constant water filter going we have a regular Green frog in with it and a turtle and a green anole which have been in there the entire time. we feed it mostly crickets and occasionally ants or bugs that our 2 sons catch from the yard — maybe this is a normal finding but the growth is growing so we are not sure what to do next”

A few thoughts.

Related to the growth on the gray tree frog’s leg, there are a number of possibilities. It could be some sort of localized fungal or bacterial infection. That would be my first guess. These often develop on a wound or injury. The growth could also be an injury that is healing in a strange way. There are also parasites that can live in or just under the skin of amphibians and cause swelling or raised bumps to appear.

The only way to know what the growth is would be to have a veterinarian examine the frog, but even then they may not be able to tell, especially if they are not experienced with amphibians.

I would recommend isolating the tree frog in a separate enclosure. Since the gray tree frog has been living with this growth on its leg for some months, perhaps it is not going to cause an issue, but in the case that the growth is some sort of infectious disease that has not had the opportunity to spread to the other inhabitants it is probably best to go ahead and move the tree frog to its own terrarium.

On that note, it would also be wise to separate the turtle from this mix. Aquatic turtles are aggressive feeders and will happily consume amphibians. In fact, it is possible that if the bump on the frog is the result of a wound, that the wound could have been inflicted by the turtle.

Keeping the anole with the green tree frog may continue to work out in a large enclosure. Again though, if you are able to and have the space for several tanks, there will be less chance of other health problems occurring if they are kept separate. If you do continue to keep the turtle, frogs, and lizard together in one cage, monitor them carefully and don’t be too surprised if down the line a frog goes missing and the turtle seems content and well-fed…

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