Is cold water good for aquarium fish?
Keeping them between 55° and 80° Fahrenheit will keep your fish happy. They can survive a wider range, between freezing and 90°, but you will notice behavioral changes and increased disease susceptibility, so it is better to keep them in their preferred range of temperatures.
Do cold water fish need a heater?
Unlike tropical aquariums, you don’t need to provide a heater for your cold water fish tank, however, it’s a good idea to use a thermometer, so you can ensure it’s kept at a nice comfortable, constant temperature for your fish. You’ll need to ensure your cold water fish tank is cleaned every week.
What fish do you not need a heater for?
Best Fish for a Small Tank without a Heater
| Name | Temperature | Shop |
|---|---|---|
| GloFish (Danio) | 64°-75° F | VIEW PRICE |
| White Cloud Minnow | 64°-72° F | VIEW PRICE |
| Guppy | 64°-82° F | VIEW PRICE |
Does cold-water fish need a filter?
Does a coldwater aquarium need a filter? It provides a home for the beneficial bacteria that helps with the nitrogen cycle, whilst also helping with water circulation and adding oxygen into the aquarium. It is particularly important to have a filter in with your goldfish as they are quite messy fish.
Can you put cold-water fish straight into a new tank?
Adding a couple fish at a time gives your filtration system the time needed to take on the increased biological load that the new fish introduce. When you bring the fish home let the bag float in the tank for about 15 minutes so that the fish can become acclimated to the temperature and pH of the aquarium water.
What fish do well in cold water?
goldfish
The most common cold-water fish species is the goldfish, followed closely by its larger counterpart, the koi. And yet there are many other interesting fish species that do not require a heated tank. All temperate zones on all continents have fish that prefer cold water.
Do Betta need a heater?
Heat & lights Bettas are tropical fish and need to swim in warm water between 74 and 82 degrees Fahrenheit. Choose an aquarium heater with 5 watts of power for each gallon of water in the aquarium. A large aquarium may need a heater at either end. Wait 15 minutes after filling the tank before turning on the heater.