Work out how many drops are in 1 ml and go from there. I think there are 16 drops in 1 ml but it depends on the dropper. Alternatively, count out 100 drops in a small phial and see how many millilitres it is, then next time add that many millilitres.
Write down how many mls of medication you use on the tank or in a book.
eg: 18mls of medication on Thursday 11June2020. The next day (or when you treat next), do the same thing but change the date.
Write down how many mls of medication you use on the tank or in a book.
eg: 18mls of medication on Thursday 11June2020. The next day (or when you treat next), do the same thing but change the date.