That's interesting. The American FIsheries Society guideline for stocking ponds in Texas dated 2005 says 750 BG per acre in a fertilized pond and 375 in an unfertilized pond.
https://units.fisheries.org/tx/tc-manuals/I thought about asking him to point me to a reference that places 6000 BG/acre within the guidelines ... but after 2 seconds ... I just went pffftt. I am done with it.
Swingle may have been the first ... if not one the first ... to demonstrate that fish density can inhibit reproduction. But as far as I know his recipe was around 1500 BG per acre (3750/hectare). He was able to grow them to about 6" from 2" fingerlings with Gambusia and fertilizer in about 5 months. Perhaps greater densities are appropriate for food fish production with surface aeration but I just can't imagine such densities for a small recreational pond.
