* Pond Heating: There are conditions that effect pond heaters and make it more difficult controlling pond temperature.
* Pond Waterfalls are used for aeration and beauty,but they cool the water and work against the heating process.
* Pond Water Depth a good designed koi pond should be at least three foot in depth,shallow large exposed surface area ponds are easily effected by wind chill factors and require larger pond heaters to maintain temperature.
Koi Pond Information: One period when koi keepers traditionally have their most difficult time with health problems is during the transition from winter to spring. As waters begin to warm up, pathogens are able to multiply at a more rapid rate than koi can defend themselves leading to an increase in the likelihood of disease. If a pond is heated over winter, then this risky period is removed from the koi owners.
Do not raise the koi’s water temperature too fast. Parasites and bacteria can also grow more quickly in warm water. The fishes system takes time to adjust but the disease organisms do not. Raise the temperature from ambient at 3 – 5 degree intervals every 24 hours to 80 – 84 degrees Fahrenheit. Maintain a stable temperature with less than 2 degrees variable per day Treat with 0.3% salt and parasiticides or antibiotics during the adjustment period, and continue with medication if necessary until cure is affected. Maintain temp. for 4 – 6 weeks after cure, then slowly drop the temperature to match that of the pond water. This will ensure a stronger Koi and ease the fishes transition back to the pond.