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Cold water fish like Goldfish, Orfe, Rudd and some species of catfish. I have left out Koi Carp on purpose because although they are coldwater fish they are also specifically for keeping in large ponds.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoSub-tropical and coldwater fish can live without heaters BUT you must note that just because a tank doesn't have a heater in it, doesn't mean it's coldwater! To have a true cold tank you need to install a chiller, which is far more expensive to buy and run than a measly heater!
Fish from all temperature ranges will be stressed out by temperature fluctuations (such as you having the heating blazing during the winter, and air conditioning during the summer!).
What fish you can keep also depends on your tank size. Goldfish are the most common coldwater fish, they also need very large over-filtered tanks. Smaller fish like White Cloud Mountain Minnows and Zebra Danios need to be in shoals in at least 15-20 gallons or more.
Research fish species very carefully!
Avery Stephens
Temperate and cold water fish. Minnows and goldfish, for example.
Fun fact, goldfish are not cold water fish. They are temperate; meaning they can handle a wide variety of temperatures
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What type of fish need heaters?
Tropical fish.
Are fish tank heaters needed?
Typically heaters are needed for tropical fish tanks. However, if you could guarantee the room temperature where the tank is located will be maintained at the needed temperature for your fish, then you don't need a heater. Most tropical tanks need to be maintained at temperatures of 72 to 80 degrees Fahrenheit, depending on the types of fish in the tank.
Does a parrot fish need a heater?
Blood parrots are tropical fish, yes they do need heaters.
Do all fish need heaters?
No. Depending upon the climate you live in, tropical fish may need heaters if you live in a cool place and if you live in a warm place cold water fish may need coolers. Each species has its own requirements.
Why do we have heaters for fish tank?
its for tropical fish and salt water fish. they need to have warm water to survive cause were they live is really warm waters
Do betta fish need heaters you heard they do but you have had one for almost 6 months with out a heater and it's fine?
No
Do betta fish need filters or heaters?
Betta fish do not enjoy currents that come from filters. You could put in a filter but I would recommend not to. Also, Heaters are unnecessary as long as you keep the water 70-80 degrees.
What are some types of fish that are affordable to take care of dont need a heater and will stay alive for a good amount of time with good care?
guppies
What types of fish do they eat?
You need to specify who 'they' are.
Does all living things need air?
no some dont need air like fish dont they need water
Do fish need water to see?
i dont think so
Do star fish produce young?
Yes but star fish are asexual so they dont need a partner
