Blagdon koi anti fungusamp bacteria is a unique treatment based on several active ingredients that act against fungus saprolignia sp and achlya sp and also finrot and mouthrot causing bacteria myxobacteria sp and flexibacter spr this is a five day course of treatment to slowly build dosage levels in the pond this maximizes the effect of the treatment whilst minimizing stress on the fishr the treatment can be used on all pond fish but is specially formulated for koi carpr how much d