Had my platty out today when I noticed a good size lump on his back. I'd say a little bigger then marble size . Kind of strange to me because I noticed this once before when he was very young . It eventually disappeared to never be seen again . I looked at him throughly for weeks after and there was NO sign of it . Anyone have any insight as to what this could possibly be ? Healthy , eating well, no issues anywhere other then this visible lump. . Thanks
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