His father lived too far away for me to visit so I began with as basic a description as possible of the procedure for testing the water, diagnosis and then treatment but he clearly was just looking for "just bung this in and it will fix the problem" and changed the subject.
So I got to thinking. There are quite a few people like that. Unable to understand how to diagnose and treat koi properly, they are allowing their fish to die from problems that are relatively easy to cure. As we, ourselves, struggle up the ladder of knowledge, what about those on the first rung without the ambition to go much higher? Should we just shrug our shoulders and allow them to carry on killing koi or should we try to educate to some small degree? Bearing in mind the limited capacity to understand koi health and pond husbandry that some will have (no disrespect intended), is there something we could hand out as very basic koi health advice to those with a koi health problem in their garden pond?
A few years ago, Duncan's health course got me thinking. The first question on assignment 1:
Q1, which of all the test kits available do you consider to be THE most essential one and why? (yes I know they are all important) but which one could you not do without given a choice?
What a question! Everyone knows that we should all get up at the crack of dawn every morning and conduct a full spectrographic analysis of our water chemistry

In a similar vein, if we were to advise the basic garden pond keeper with a health problem what action to take, what should that be? Bearing in mind they won't join a koi club and won't get someone in to diagnose properly, what simple course of action has the highest probability of success? Or isn't there anything that can be done in these situations?