For the heater wattage, the basic rule of thumb is to use between 2.5 and 5 watts per gallon! Therefore, 200-watt aquarium heater is a good choice for keeping a 50 to 55 gallon fish tank in a perfect temperature range.
Best 200W aquarium heaters that you can choose from
Our top pick
- Adjustable heat setting 68 to 88F,...
- Recommended for aquariums up to 75...
Last update on 2020-11-02 / Affiliate links / Images from Amazon Product Advertising API
The Aqueon Pro Adjustable Aquarium Heater is a top-tier aquarium heater. Its electronic thermostat has an accuracy of 1 degree with a temperature range of 68°F to 88°F. Aqueon Pro Heaters is durable, shatterproof constructed, and completely submersible. For evenly heat distribution, I’ll advise you to place heater close to your tank’s filter outlet. Aqueon Pro is not only about the durable construction, but it also offers many safety features.
Aqueon Pro is best for freshwater aquarium and can accommodate up to 150 gallons of the tank. One of it is that the heater automatically turns off (indicating a LED green light) to prevent your aquarium from overheating after the temperature of the heater reaches the desired level. Also, your heater automatically turns on (displays a Red LED light) when the temperature goes below the desired temperature.
- Shatterproof- construction and highly durable
- Completely submersible
- Thermostat accuracy of 1 degree
- LED light automatically ON/OF for water temperature regulation
- Housing is black rather than clear
- Larger sizes may be too long
Other choice for you
Last update on 2021-04-07 / Affiliate links / Images from Amazon Product Advertising API
Tips for Using Aquarium Heaters
- It is best to use multiple units with hang-on and submersible heaters. This provides more even heat distribution and puts less strain on the heaters. Also, if one of the heaters goes out, the temperature may not plummet too dangerously until you can get a new unit. It’s also smart to buy an extra heater to keep on hand as a backup.
- In larger tanks, or in situations where the room temperature is significantly below the desired water temperature, two heaters may be required. Heaters should be installed at opposite ends of the aquarium to ensure even heating.
- Check for heat sources and fluctuations in room temperature around the aquarium. Your tank may be located under an air vent or next to intermittent heat sources that can make the temperature rise and fall.
- The heater tube length is important because heat rises. As a general rule, the heater tube should match the height of your aquarium.
- Some heaters have specific number settings for the thermostat control so you can set it to the desired temperature. Other heaters have controls that go from low to high, without having specific temperatures indicated. The former ones are easier to use, but always check to ensure the heater setting is actually keeping the aquarium at the correct temperature.
- Always unplug the heater when you are draining the tank to prevent the heater from overheating when it is no longer submerged.
- Use an aquarium thermometer to verify the heater is keeping the aquarium water at the correct temperature. Move the thermometer around to check the temperature in multiple locations in the aquarium to ensure that the water temperature is uniform.
- Have the heater located by the water outflow from the filter so that the moving water disperses the heated water throughout the aquarium.