Goldfish spawn in the spring, when water temperatures rise after the cold winter therefore, to encourage your goldfish to lay eggs , you should lower the temperature of your tank in the winter months to between 10°c/50°f and 12°c/54°f. Goldfish can survive temperatures from forty degrees to one hundred six degrees, but the extremes will kill the goldfish if th e exposure lasts too long the best temperature range for most goldfish is sixty-eight to seventy-five degrees, and some breeds prefer even warmer temperatures.
Goldfish are happiest when their aquarium water temperature falls between 65ºf and 72ºf aquariums that reach the 80’s or higher become very stressed and ill you will likely need to scoop out your floating goldfish in a day or two of your goldfish living in such uncomfortable and dangerous conditions. If the water temperature in your house varies considerably from day to day, then you need to install a heater in your tank fancy goldfish varieties require a water temperature between 60 o f(15 o c) and 75 o f(24 o c.
Room temperature is fine for the goldfish, keeping in mind that if the temperature in the room goes up past 90 degrees, so will the temperature of the water keeping the ambient temperature down around 70 degrees is perfect for year-round goldfish health. In the uk, goldfish normally spawn in the spring as water temperatures approach 20°c/68°f and the fish are fully reconditioned from hibernation you can help by not allowing them to cool too low over winter and then slowly raising the temperature earlier in the year. The best water temperature for goldfish reasons for raising or lowering the water temperature, water temperature and breeding raising temps to treat parasites. Goldfish can survive in a wide range or water temperatures but at the high and low extremes, the health and happiness of your goldfish diminishes at very cold temperatures, goldfish go into semi hibernation, sit at the bottom and don’t eat much.
Goldfish are cold-water fish and can withstand a wide variety of different temperatures, both in aquarium settings and in outdoor ponds they are compatible with some types of warm-water fish, such as guppies, as long as the aquarist realizes that guppies are much smaller than goldfish and could end up as dinner for. Allow the water temperature to change as the seasons change while goldfish don't like temperatures over 75°f (24°c), they do seem to like seasonal variations where the temperature falls to the high 50s or 60s (15-20°c) in the winter.
Pet central looks at the proper water temperature for goldfish and how to set your aquarium water temperature accordingly.
Temperature you should use cooler water around 70f (21c) goldfish can live safely in waters that are between 55-80f lower than 50 and higher than 85 are the danger zones and these temperatures can kill your goldfish some goldfish can survive in ponds down to a few degrees about freezing 32f. Common plecos are ok with water temps down to about 70f, and goldfish are fine with water temps up to about 77f they can handle warmer for a while, but it does seem to stress them a bit, less oxygen in the water etc.
Allow the water temperature to change as the seasons change while goldfish don't like temperatures over 75°f (24°c), they do seem to like seasonal variations where the temperature falls to the high 50s or 60s (15-20°c) in the winter fancier goldfish are an exception and cannot easily tolerate temperatures below about 60°f (16°c. This means that goldfish are at the mercy of the water temperature to regulate critical body functions for example, simple functions such as locomotion are affected by water temperature goldfish in cool ponds move more slowly than goldfish in very warm ponds fancy goldfish in water that is 50 degrees fahrenheit are almost catatonic.
While goldfish don't like temperatures over 75°f (24°c), they do seem to like seasonal variations where the temperature falls to the high 50s or 60s (15-20°c) in the winter fancier goldfish are an exception and cannot easily tolerate temperatures below about 60°f (16°c.