I bought this G. Tapajos on Saturday and over the past couple of days he has developed what looks like a scrape on his head. Today it looks worse. Does anyone know what this is? There was an aggressive Sajica in the tank which was dive bombing the geos but I removed him from the tank on Monday. Do you think he has scraped his head or been hurt by the Sajica or does it look like a disease of some sort?










