ArauraDiscus
Fish Addict
From what I have read, goldfish are in fact not a coldwater fish. Some people worry that their tanks can get too hot, but many fail to realize that goldfish and carp/koi originate from north america and china, both temperate zones. Water temperatures range from 32-82 degrees F. While yes goldfish can tolerate these near freezing temperatures, does that really mean they prefer these stressful and cold temperatures? No, they prefer tropical temperatures as well. They seem to like it around the mid 70's in F.
In fact when defining a coldwater fish, should we not say that a true coldwater fish is not happy above a cooler temperature. The common temperature thrown around for coldwater fish seems to be 68. And fish like sterlet and sturgeon become weak and sickly above this temperature. They are true coldwater fish because they enjoy these cooler temperatures and depend on these temperatures.
So since goldfish don't need a heater for their tank, they can withstand a broad range of temperatures which just goes to show that they are a temperate water fish, not a coldwater fish.
Thoughts?
In fact when defining a coldwater fish, should we not say that a true coldwater fish is not happy above a cooler temperature. The common temperature thrown around for coldwater fish seems to be 68. And fish like sterlet and sturgeon become weak and sickly above this temperature. They are true coldwater fish because they enjoy these cooler temperatures and depend on these temperatures.
So since goldfish don't need a heater for their tank, they can withstand a broad range of temperatures which just goes to show that they are a temperate water fish, not a coldwater fish.
Thoughts?