Originally Posted By: snrub
But once you get predators big enough to eat them, they will try and seek something with some protection if available.


+1 My pond is small which has its advantages. After I saw they were hollowing out under rocks, I just went around and made a whole bunch of little breeding habitats that consisted of three 4 or 5 inch round stones with a flat stone on top. I placed the 3 stones close enough to keep predators out from the backside with the main opening towards the shore. I call them little Flintstone houses after the old TV show. Within 2 days, all had happy resident males. They hollowed out under the flat stones to suit their preferences.

Note: I did this before I found PBF so I was just "winging it" based on my personal observations. I am sure there are a lot better ways.

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