Stocking your pond with fish
A pond that's properly stocked and managed will give you years of fishing enjoyment. Some states offer stocking programs, but commercial hatcheries are also available.
Stock fish in the fall or spring, when water temperatures are less than 65 degrees F. This will reduce stress in the fish. Also, make sure the water temperature in the hauling tank and the pond don't differ by more than 5 degrees. Add pond water to the tank slowly to make temperatures consistent. Let the hatchery know your pond's water temperature ahead of time.
Fish to stock
When choosing a species of fish to stock in a new pond, you need to consider both the size of the fish and the size of your pond. The University of Ohio Extension recommends these species:
Largemouth Bass: Stock 100 2-4" fingerlings, 50 4-6" fish, or 20 9-10" bass per acre. For bass to thrive, you'll need a fairly large pond so that the entire food chain can be sustained.
Bluegill: Stock 500 1-3" fingerlings per acre.
Redear sunfish: This species is an alternative to bluegills. They grow larger, eat pond snails, and produce fewer young, so they're less likely to be stunted. You'll still need bluegills for the bass to feed on, so stock 250 1-3" redear and 250 bluegill fingerlings per acre.
Channel catfish: New ponds can be stocked with 100 2-4" fingerlings per acre, and existing ponds 100 4-6" fish per acre. The larger fish won't be eaten by the bass population. Channel catfish will not reproduce in ponds unless containers are provided for them to spawn in. This is not recommended because it can cause over population.
Fathead minnow/golden shiner: Stock 1,000 adult minnows or shiners per acre to provide food for stocked bass until bluegills and/or sunfish can spawn and provide young for the bass to eat. Occasionally, fingerling carp and bullheads will be fund in loads of purchased minnows and shiners. Take care to remove them.
Grass carp: Stock this species only if you have a problem with underwater vegetation in your pond. You can stock between four and 12 per acre, depending on how severe the vegetation problem is. In some states, only certain types of grass carp are legal to stock. Check local regulations.
Other species: Yellow perch, walleye, northern pike, black and white crappie, smallmouth bass, rainbow trout, and striped bass are also popular fish to stock in ponds. Do not release more than 100 per acre of any of these species.
Fish to avoid
Common carp: These fish will turn a pond muddy, even in small numbers. If they are currently in your pond, stock adult largemouth bass to eat the young.
Yellow, brown, or black bullhead: At high densities, these fish also cause ponds to become muddy. They have a very high reproduction rate and eat bass and bluegill eggs, so overpopulation can occur quickly.
Green sunfish: These cousins of bluegill and redear sunfish rarely grow to be larger than 6 inches, but their large mouth allows them to out-compete other sunfish species.
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