03-25-2013, 05:29 PM
| || |
I would not remove this one fish unless it develops more precise symptoms of something [red bloltches, patches, red gills, increased respiration, etc]. While I agree that this might be a bad sign, it also might just be temporary stress reaction. Corys are sometimes prone to just tipping over on their side for example, what some refer to as the cory faint; they can completely recover. I have seen this and the fish lived normally afterwards.
Corydoras do not appreciate any change to their environment, and such is very highly stressful. I doubt that the selectively-bred albino form would have changed much from the wild ancestor species (likely Corydoras aneus) in this regard. So maintaining stable parameters, and otherwise reducing stress as much as possible, is the best course.