Water
0 ppm ammonia
0 ppm nitrite
5 ppm nitrate
SG 1.010 steady last 9 days
pH steady 8.1
72 degrees
No powerhead to get stuck on this time, and no tankmates
This fish seems to have developed these symptoms since noon today (7 hours ago):
Head is covered with white slime coat that is sloughing and head appears swollen
Began hovering at bottom of tank, but still actively swimming around
Began swimming with mouth open
Currently in hypo saline for treatment of crypt (which has not been visible on the fish for 7 of the past 9 days)
Administered Metronidazole in soaked carnivore pellets last 3 days
Last ate at noon today
We've never seen anything like this - photos below. We have begun treatment with marine Melafix (the only medication we have on hand). Any other medication would have to be overnighted.
Anne and Robert