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It all depends on how much the tank holds and the wattage of your heater I like to have 10 wattage for ever gallon so if you hVe a ten gallon tan you need a 100 watt heater also the temperature of you want will make a deference normally my 20 gallon tank can go from 46F to about 77 F in two hours

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Q: How long does it a fish tank heater tank to heat the tank?
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Can you keep normal fish in a fish breeder tank?

Yes, as long as you have a filter and a heater. Most breeder tanks have partitions that can be removed.


What do you use to raise the temperature on a fish tank?

A heater can raise the temperature of a fish tank if needed


How long does it take for a heater to heat up the water in your tank?

Less than 3 minutes! It shouldn't take that long


How long does it take for tank water to heat up without a heater?

Tank water will slowly warm to ambient temperature. It will not get any hotter.


Where can one purchase a fish tank heater?

One can purchase a fish tank heater at various pet supplies shops. PetSmart, Petco, Marine Land, and Argos all have fish tank heaters for sale on their websites.


What fish tank heater is best for a 2 foot tank?

a big one!


What is the movement of water in a fish tank with a heater on?

Circulation


What are the different kinds of equipmanet of fish?

FIlter, heater, tank


How do you keep fish tank cool?

If you have a heater, turn it off.


What kind of heater do I need for a one gallon tank for a betta fish?

It is unsafe to heat anything smaller than two gallons. As long as your room temperature is reasonable (68-76ish for a betta) you should have no problems. If not get at least a two gallon tank and heater, one with an internal thermometer unless you want to monitor it 24 hours a day.


Why does the water in a tropical fish tank become warm?

Usually there is a heater that warms the tank on purpose.


How hot is a heater in a fish tank for ready to put fish in?

Most fish are around 78 degrees F.