So, call me crazy, but I'm stressing out a bit over this product.
I used it about a week ago, have put the carbon filter back in, symptoms have been gone more than 3 days yadda yadda yadda. No problem with Ick anymore.
BUT an ingredient in this called Nitrofurazone has been shown to be able to cause cancer. I just got to thinking, there are still probably amounts of this in my tank, the water, the rocks, the filter, etc. Should I be cautious when dealing with my aquarium (using gloves and things like that) from now on because of this? Does anyone know how dangerous this chemical really is? Should I be worried?