ok here is the problem i have a leach problem in my pond which i can only suspect are from some drift wood i got fro the beach as the only other thing i've added since the break out of leaches are plants bought from garden centres and i am sure they wont have leaches on their plants, would they??.
have no idea how to get rid of it. does anyone know a way that they have tried that worked or know of a way??
i am unable to go for the trial and error method that i usually do as this is an 8000L pond and any treatment would cost a bit. and empty the pond is not an option as i have no were to house 100 odd gold fish and its just a pond lining pond which means i would not be able to get in and scrub it anyway.
only thing i've tried is pond salt and all it did was killed some of my plants.
can anyone help me? thought and suggestions all welcome. thanks in advance.