They will relieve their body wastes directly into the water. One cow produces wastes equivalent to many hundreds of market size fish. Runoff containing organic waste from overstocked pastures, feed lots, barns and septic systems can overload a pond's capacity to break down organic matter. Drainage from highly eroded areas produces large amounts of suspended silt and soil. In some cases, problems involving toxic chemicals, excessive nutrient loading and excessive turbidity can be corrected.
Correction requires removing the source of the problem and time.
Another important factor to consider in pond selection is the amount of time needed for daily travel. If the pond is several miles from your home, this would add much more time to the care of your fish. In isolated ponds, there is a chance for theft of market size fish. Theft of fish grown for market is a punishable crime in Oklahoma. If the pond is near your home, it will be much easier to care for your fish.