Fluval Submersible Glass Aquarium Heater, 50-watt
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List Price:
$34.29
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$21.98 FREE 1-3 dayShipping over $49
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Keep your fish happy, healthy and swimming in comfort with the Fluval Submersible Glass Aquarium Heater. This sleek and compact submersible heater provides exceptional performance and unsurpassed reliability in both fresh and saltwater tanks. Made from high-density ceramic, the heating element is encased in shock-resistant borosilicate glass and features a temperature range of 68-86 degrees F. To help maintain the aesthetics of your aquatic display, the unique reflective technology of the outer casing makes the heater virtually invisible in your tank. For your convenience, dual suction cups allow you to easily install it inside your aquarium.
Key Benefits- Sleek and compact submersible heater provides exceptional performance and unsurpassed reliability.
- High-density ceramic heating element is encased in shock-resistant borosilicate glass.
- Temperature can be set between 68 and 86 degrees F; suitable for up to 15-gallon fresh or saltwater tanks.
- Unique reflective technology of the outer casing makes the heater virtually invisible in your tank.
- The included dual suction cups allow you to easily install the heater inside your aquarium.
Water level should not rise above the maximum water line or below the minimum indicated on the glass heater tube. Always maintain the water level in the aquarium to compensate for water loss due to evaporation.
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Item Number124981
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Dimensions11 x 1 x 1 inches
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Weight9.92 ounces
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Aquarium TypeFreshwater, Saltwater
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Fish TypeTropical Freshwater, Betta, Cichlid, Goldfish, Marine Fish
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MaterialPlastic
It is recommended to fill the aquarium with water that is close to the desired temperature you are trying to achieve. The aquarium heater must be positioned to allow for free circulation of water around the glass heater tube. Generally, the heater should be placed at the rear of the aquarium, preferably close to a source of water movement to ensure even and thorough distribution of warmed water. Be sure there are no rocks, decorations or gravel obstructions touching the heater to create uneven heat in the glass tube and weaken it.
1) Select the appropriate temperature by adjusting the Temperature Dial to the appropriate degree calibration.
2) Position the heater in the aquarium with the heater mounting bracket attached. Press suction cups firmly against glass to adhere to the aquarium wall. Wait 30 minutes before connecting to the electrical outlet. This allows the heater to adjust to the aquarium water temperature.
3) Note that it may take up to 12 hours for the heater to attain the water temperature you have selected. It is only after this time that the Easy-Set Temperature Dial should be adjusted to achieve a higher or lower temperature, as required.
4) The unit heats only when the pilot light is illuminated. When the pre-selected temperature is reached, the pilot light shuts off. It will light again only when the heater is required to maintain the temperature at the selected level.
5) The temperature should be verified with an accurate thermometer after the heater has reached the desired temperature, before any fish are added to the aquarium, and throughout the life of the aquarium.
Customer Reviews
80% Recommend
80% of reviewersrecommend this product
You've Already Reviewed This Item
20 Reviews
Showing 1-10 of 20 Reviews
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Great little tank heater
By LisainNM on Mar 15, 2021
I have 3 bettas and was using the tetra brand heaters which work fine. However one of my betta tanks sit in our sunroom and in the winter at night that room is the coldest in the house and the tetra brand heater could not keep the tank up to temp. When I would wake up the tank temp would be 74 degrees and with a +/- 1 variation I was not happy with the temp being at the low end of acceptable temps. So I decided to give this little heater a try and I am glad I did! I set this heater on 80 and the tank has been 79 degrees ever since. With a +/- of 1 on the tank thermometer (I have digital probes in tank) this is acceptable and I am very happy with this purchase! I just ordered 2 more to have I have 3 bettas and was using the tetra brand heaters which work fine. However one of my betta tanks sit in our sunroom and in the winter at night that room is the coldest in the house and the tetra brand heater could not keep the tank up to temp. When I would wake up the tank temp would be 74 degrees and with a +/- 1 variation I was not happy with the temp being at the low end of acceptable temps. So I decided to give this little heater a try and I am glad I did! I set this heater on 80 and the tank has been 79 degrees ever since. With a +/- of 1 on the tank thermometer (I have digital probes in tank) this is acceptable and I am very happy with this purchase! I just ordered 2 more to have on hand to replace the other 2 when needed. … more
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Fish tank heater
By Honey on Jan 17, 2021
This is probably my favorite addition to my tank. Its modern its elegant and highly accommodating with multiple ways to position. Its a little confusing at first and does take a day or so to sufficiently do its job in my 3 gallon tank. It lights up a soft blue in the middle when it feels a temperature change in the water and fine print states it has a 3 year warranty. Im in love with this product and so far has been worth every penny. My betta seems to like it too since I caught him hanging around it a few times.
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went out after a few months
By angel on Apr 16, 2021
This heater went out after a few months! I guess I should have bought a backup
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Decent heater
By DiscusMamma on Jan 28, 2021
Decent heater for the money, bought a few of these as they were needed for my breeder Discus tanks. Have tried nany other heaters and have failed within 6months. So far so good.
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This thing is to big
By massive on Feb 26, 2021
This thing is massive. Gonna try and return cause this thing is insanely large for what it is over a foot
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Maintains temp
By Saltwater24 on Nov 8, 2020
I bought this for my evo 13.5 gal aquarium after having issues with a different fluval 50w heater. The old heater would get way to hot and a wide fluctuation in temps. I bought this because it has a temp dial you can set. So far since I have set it up, every time I check my aquarium temp it is 78.4, never changes. Not sure why some people gave this bad reviews.
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Warms great
By redtoo2013 on Jan 7, 2021
Warms my 5 gallon betta fish tank great, not too cold not too warm.
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disappointed
By lisa on Oct 30, 2019
I ordered this based on reviews. It worked for about 2 days and then broke. I’m quite irritated and now am in the market for a new heater.
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Junk that works for 24 hours
By John on Apr 27, 2019
Read the reviews like most and most were good so I bought this thinking I would be getting a good heater and it was for 24 hours took about 12 hours to heat up to 80 degs and held for 12 hours then failed to heat up past 78 degs and hold any stable temp. Do not buy this if you need stable temp in your tank it will let you down just like it did for me.
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Pretty good
By MeganN on Sep 29, 2018
I was worried to use it in my 5 gallon because I was scared it would make the tank way too hot but it works farely well. Every so often it will be about 3 degrees more than what I have it set on so I recommend you monitor your tank regularly but other than that it’s works well
