Ok thanks for the information guys. And no i typed it all way too fast! Its pretty good stuff though. All my fish are currently under 2 inches long. Except for clown loach at just over 2 and parrot fish about 5 inches long. Now i know exactly what to do! As my fish only have about 6 to 8 spots max. I think i should be able to beat the disease. Just got a bit confused and didnt think i could use the treatment properly without killing bacteria. Thanks guys.