Your very welcome, I know ick is a common problem that most fish owners have faced. Though it isn't a misprint, I let my mother borrow it for her 29 gal. tank when all of her fish became ill with ick, it cured all of the fish with 2 treatments, approximatly 48 hours.
The lable reads:
Directions: Shake well. Before using, remove any carbon from the filer, no need to discontinue filtration. Use 10 drops per gallon (or 1 capful per 10 gallons) every 24 hours for a maximum of 3 days.
FOR TETRAS:
Use 5 drops per gallon (or 1 capful per 20 gallons) every 24 hours for a maximum of 3 days. 48 hours after final treatment replace filter carbon.
WARNING:
Do not use on Baby Whales oe Elephant Nose. Do not use with invertebrates or living rock. Do not exceed recommended dosage. May stain silicon sealent.
Active ingredients:
Malachite Green
Formalin
Anyway hope this is helpful.