My Monti has been doing fine and is growing. But in the last 2 weeks has developed this necrotic looking spot. Any ideas what could be causing this? I may have hit it with the alkalinity portion of B-ionic when dosing with a syringe but that's all I can think of. My parameters have never been better and everything else is fine.
![20240307_180009.jpg 20240307_180009.jpg](https://www.reef2reef.com/data/attachments/3478/3478511-0039300e84f60a5b38a1a73ccaf1193c.jpg)
![20240307_180009.jpg 20240307_180009.jpg](https://www.reef2reef.com/data/attachments/3478/3478511-0039300e84f60a5b38a1a73ccaf1193c.jpg)