Crazy, feel free to reach out and I can explain how I engineered a pond as you are considering. Works great, best thing I have ever conceived - with help from the forum, of course. I strongly encourage you to pursue this plan - mini ponds for forage, growout, reproduction or fishery experiments are a load of fun and very useful. When they are connected to your primary pond with a gate valve it enables one person to perform all labor necessary without seines, nets, pumps, etc. Allow a little ingenuity and gravity to perform the labor for you!
This is me reaching out.
Would love to see how you did yours.
The small red circle is where i would like to put it. It does drain a large area, and spillway would have to be large.
