My new addition to my aquarium, a saddled sharpnose puffer has developed some sore grayisch spots with an white inner cirle and a small incision in the middle. He looked great two days ago and had no problems whatsoever.
The watervalues aren't the great either. ph is 7,7 and calcium is to low. so that may have contributed, but that can't be the cause of it. could this be some type of bacterial infection?
Sorry, the link for the photo does NOT seem to work! (first time poster..)