Hi.
My friend has 4 Malawis and is having a problem with their lack of activity. She is concerned that in the last week they have all become what she described as "lethargic". I asked her to check for the usual things I could think of, like change in water pH, ick, etc, but I am no pro and she fears she will lose them all.
4 fish, about 4.5 inches each, in 55 gal tank, no change in water or anything, filters were changed 3 weeks ago, no change in food.
Any thoughts?

