Ouch. It definitely looks like an injury. Which is promising in the fact it may not develop into drop eye. What you can do is make sure your water is pristine with daily water changes. Add salt if you’d like and hope for the best. I think it’s promising for a full recovery if you stay on it like you have. Arowanas get crazy sometimes. Lucky he didn’t kill himself. I’ve seen it before...They can be suicidal.
thanks for the insight.
I have tried using Melafix. Not sure if it will work. It’s a seven day course.
post that I can try salt. Or do you suggest I stop the melafix and go with salt?