Can you put cold water fish in warm water?

Goldfish – coldwater fish – prefer cooler temperatures around 65°F (18°C), while tropical species like their water toasty warm (72 to 85°F or 22 to 29°C). But they won’t feel comfortable kept in warm water all the time. And if you try keeping tropical fish in cold water, they’ll just become lethargic and refuse to eat.

What fish can live in any temperature?

Tropical fish, for example, do best between 75° and 80°F, goldfish and other “cold-water” species prefer temperatures below 70°F, and temperate fish can be found in habitats that overlap tropical and cold-water realms.

Do fish like warmer or colder water?

Warm Water Important for Cold-water Fish Like Salmon and Trout, Study Finds. Cold-water fish need both warm and cold water habitats at different parts of their life cycle. Warm river habitats appear to play a larger-than-expected role in supporting the survival of cold-water fish, such as salmon and trout.

What kind of fish is a warm water fish?

Tetras are small, warm water, tropical aquarium fish. They are only about two inches long and prefer to school; they do best in groups of five or six. Tetras give lots of color and excitement to the tank, are easy to care for, and come in a variety of types and colors.

What kind of fish live in a freshwater tank?

The Guppy is a popular breed among new aquarium enthusiasts, because it doesn’t need too much special knowledge, to care for it. All you need for it, is a simple freshwater tank, with multiple plants and substrate. Their natural habitat is in South America, where they were first found in 1866.

What kind of fish can live in an unheated tank?

One of the best fish for an unheated aquarium is the comet goldfish, also called the comet-tailed goldfish. Like most goldfish, this type can get rather large (easily reaching 12 inches/25-30 centimeters) and requires plenty of space to swim. It will quickly outgrow a bowl or nano tank, so think about how much water it will need.

Which is the best fish to keep in an aquarium?

Actually, the Cory Catfish is used as an aquarium bottom cleaner fish. Most of its time, is spent scavenging the bottom of the tank for left-overs, and most of all, algae. Actually, a single Cory can clean a 20/30-gallon tank by itself, from all the algae in it. Of course, it’s best if you keep multiple ones in your aquarium.

Tetras are small, warm water, tropical aquarium fish. They are only about two inches long and prefer to school; they do best in groups of five or six. Tetras give lots of color and excitement to the tank, are easy to care for, and come in a variety of types and colors.

The Guppy is a popular breed among new aquarium enthusiasts, because it doesn’t need too much special knowledge, to care for it. All you need for it, is a simple freshwater tank, with multiple plants and substrate. Their natural habitat is in South America, where they were first found in 1866.

What kind of fish can you keep in a cold water aquarium?

The Pygmy Sunfish is a very pretty species that’s one of the best fish for cold water aquariums. The funny thing is not many people know about this fish (even the ones that want to keep fish without a heater). Out of all the fish on this list, the Pygmy Sunfish is up there in terms of its ability to handle low water temperatures.

Are there any fish that can survive without a heater?

There are plenty of fish found in North American waters that can survive without heated water, but there are few species available for freshwater tanks. One of the options, however, is known as the mosquitofish. While these fish are usually sold as feeder fish for breeders, they are a great option for tanks.