Hey guys, I've had an established community tank at 150g. And I plan on jumping to a 300 by Christmas time because my fish have all been doing so well and obviously continue to grow. I have had the majority of my current fish for 2 1/2 years and have upgraded the tank size twice with no issues. My newest additions were 2 small iridescent sharks, which I've had for approximately 3 months. I consider myself to be an experienced and knowledgeable fish keeper but I've had no experience with diseases or injuries. My point being; my water temperature is around 76 degrees, my PH, ammonia, nitrite, and nitrate levels are all perfect, I have a strong current created using bubble wands, and I have filters that pump out more than double the suggested output of water per minute. Anywayyyy, one of the fish has been swimming around with a pretty significant injury to its face right between the eyes. At first it didn't concern me much because I know that they are notorious for having horrible vision and panicking, resulting in ramming into decorations. However, it's been about 2 weeks and I'm not noticing improvement and the other one has developed a circular mark on one side that looks very similar (NOTE- my pics are of both fish). Even stranger is that I have literally never seen either of these fish panic and fly around the tank, they seem to enjoy swimming back and fourth leisurely with my school of bala's...... I know that the best treatment for flesh injuries is a raised temperature and the addition of aquatic salt (2 teaspoons per gallon). But should I be concerned based on the pics, that there's a developing infection or is there a better way to treat them?
