Over the past few days I have noticed my little amazon milk frog has started to look really bloated, seems to only be the abdomen. I initially thought he may have just eaten too much, but having not fed him for a couple of days now it seems there may be a problem. I have another milk frog and he looks fine. Does anyone know what might be causing this? Is there anything I should do? I gave the whole terrarium a good clean out yesterday in case it was anything to do with bacteria. Other than being bloated he hasn't been behaving particularly weirdly, he is still climbing up onto leaves and was bathing in the water dish earlier. Any advice would be great, I've attached a picture so you can see what he looks like now (sorry it seems to be sideways, I don't know how to change it)!

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