Every significant development that takes place in your pond boils down to metabolism.
Algae and bacteria ratio, oxygen level, rain, and sunlight are some of the most typical factors that contribute heavily to the metabolisms of life in the pond. Although the majority of these contributing factors are unpredictable and impossible to control, there is one of many cases wherein you can tell that it is easy to predict and manage the impact of metabolism on your pond. The impact of pond water temperature on fish metabolism is one such instance.
Since pond fish are cold-blooded, their metabolisms are greatly affected by the weather. Whenever the pond water gets colder, their metabolisms slow down as well. Luckily, the metabolism slowdown can be dealt with by altering the fish food and the means of feeding them.
When it comes to fish feeding and pond water temperature, it is highly recommended that you follow the ensuing rule of thumb. Replace normal fish food with cold-water fish food if the water temperature drops below 55 degrees Fahrenheit. Pause feeding completely if the temperature becomes 42 degrees Fahrenheit or less than that.
The point of halting the fish feeding once the temperature drops below 42 degrees Fahrenheit has to do with their slowed down metabolism that they will hardly need to eat at all. At this rate, any food you feed your fish will simply rot in the water and affect the health of the pond water negatively.
Coldwater fish food matters a lot because it has been designed cleverly for easy digestion. This will allow you to offer your fish only what they need during their slower metabolic state.