Thanks for the advice.
I don't have electricity to the pond that's why I will buy a windmill and aerate with wind.
I have looked for minnow traps and have not heard of 'funnel' traps. I get the idea but if there is a post on how to make them or a website with a diagram it would help.
I have bought minnow traps and they don't seem to catch many minnows.
Any good minnow trap designs would be welcome.
Max