Harkers Harkanker Soluble - for racing pigeons.
For the treatment of Canker via the drinking water
Harkanker is a 5 day treatment and now contains Ronidazole 10%
It is important to use before breeding and again before the racing season
Each pack contains 10 sachets
1 sachet makes 4 litres of solution which is enough to treat around 80 pigeons
