A farm pond = free protein + livestock water + irrigation + beauty.
Setup
Dig: 0.1-0.5 acre, depth 1.5-3 m. Dam a stream or fill from spring. Bank slope 3:1 (so livestock don't get stuck). Overflow channel (prevent washout in rain).
Fish Species
Channel catfish: best for ponds. Eats anything, grows fast, tasty. Largemouth bass: predator — controls small fish. Bluegill: forage base for bass + children's fishing. Trout: if spring-fed pond (needs cold water).
Feeding
Minimal. Livestock manure → algae → plankton → small fish → big fish. Kitchen scraps. Grain (little). A good pond feeds itself.
Harvest
0.1 acre pond: 50-100 kg fish/year. Catch by rod (children's entertainment) or net (when need lots). Fish — free protein for life. Investment: $500-2,000 for pond (digging). Pays back in 1-2 years.