I just noticed an odd spot on my 11 month old African Bullfrog today and its got me concerned. The blemish is flush with the skin and feels basically like the rest of his skin. He has not been acting odd at all and is eating normally. No other spots are present anywhere on him.
He lives in a 35 gallon bioactive terrarium with tons of plants, isopods/springtails and a filtered pond. The tank is kept at 75-77F.

If anyone could ID what this spot is or could be, and if I need to treat him for it I'd be very thankful. Its gotten me pretty worried!

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