I noticed this morning that Vishnu has a small round protrusion above one of his eyes. I'm not sure what it is. He may have irritated himself during one of his love fests with the rock to which the Anubias is attached. Or he may have an opportunistic infection related to some tank condition. The water quality is good; I'm changing it with conditioned water every three days, including a gravel vacuuming of waste and food. So, I'm not sure what's up.

I dosed the tank lightly with Maracyn Plus, which proved to be life saving for Honegger back in early fall when he was a fin short of death. Since Vishnu is so much larger and slower, it's easier to observe his body for signs of illness. Glad I caught whatever it is early. We'll see if the Maracyn works.