What size heater do you need? The answer in these easy steps.

Difficulty: Easy
Time Required:  10 minutes

Here's How:

1. Determine the average temperature of the room where you your tank is kept.
2. Decide the temperature you want to maintain the aquarium water at. This will be based on the kind of fish you keep, however most freshwater fish do well in the 76 to 78 degree range. Check the fish profile library to find temperature requirements for specific fish.
3. Subtract the average room temperature from the temperature you want to maintain the aquarium water at. This is the number of degrees the aquarium must be heated.
4. Take the number from step 3 and use the Heater Guide link under Related Resources to find the wattage you'll need.
5. If the wattage is borderline, choose the next higher size.
6. Run the heater in your aquarium for at least twenty-four hours before adding fish, to be certain it is working properly.

Tips:

1. If you can afford it, choose heaters that have a real temperature scale on them. They are easier to adjust.
2. Watch for sales and purchase a spare heater for emergencies.
3. Be sure to buy a thermometer when you select your heater.

What You Need:

More How To's from your Guide To Freshwater Aquariums