the only product i could find in NH was tetra and top fin, and i won't use anything they make,, i was able to find API Super Ich,, treated 5 gal at half dose with one little cory to see how it does and if it works,,, my main tank parameters are: GH-0, NO3-30ppm, NO2-0, CL2-0, KH-40, PH-7.2, temp 76, trying to keep hospital tank same as main just incase i see signs in the others and have to drop them in the five, trying not to heat the tank unless i have to..im 60 have had fish my hole life and only had Ich once and never on cory's,, and also thank you for all your advice ,, what do you know and think about API super Ick?