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About this item
About this item
Important Made in USA Origin Disclaimer: For certain items sold by Walmart on Walmart.com, the displayed country of origin information may not be accurate or consistent with manufacturer information. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information.
Keep your tropical fish and other aquarium occupants warm and active with the Tetra Heater 5-15. This submersible unit is UL-approved for safety and is easy to conceal behind a plant or sculpture. Offering a compact design, it is easy to use thanks to suction cups that keep it firmly attached to glass. The Tetra submersible heater is made of shatterproof glass for durability. It also features an electronic thermostat, so it automatically maintains a water temperature of 78 degrees Fahrenheit. This unit boasts compatibility with aquariums with a capacity of up to 15 gals.
Tetra Heater 5-15:
- UL-approved for safety
- Compact aquarium heater
- Easy to use
- Electronic thermostat automatically adjusts to maintain aquarium at 78 degrees Fahrenheit
- Made of shatterproof glass
- Heater offers compatibility with aquariums up to 15 gals
|Size:||1 , FOR 2 - 15 GALLON TANKS|
|Assembled Product Dimensions (L x W x H):||2.00 x 2.00 x 6.50 Inches|
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Q. When they say "completely submersible", can you actually place near the bottom with the cord partially in water?
- um, no. electricity and water do not mix.by SpeechlessinSeattle12/14/2016Was this answer helpful? (0) (19)Was this answer helpful?
- Yes. As long as the heater itself is under water lineby Fishhobby8/21/2016Was this answer helpful? (7) (1)Was this answer helpful?
- Yes you can. Ours is under water and have not had any problems with it.by CaityJ892/3/2016Was this answer helpful? (5) (0)Was this answer helpful?
- Yep. You sure can.by TetraGal8/21/2016Was this answer helpful? (5) (0)Was this answer helpful?
- Yes, just don't cover it with gravel or anything.by MrsKrist121210/24/2016Was this answer helpful? (9) (0)Was this answer helpful?
- Yes you can completely submerge this heater. mine before it killed all my fish sat at the bottom of my tank.by Yoda5108410/24/2016Was this answer helpful? (3) (14)Was this answer helpful?
- Yes. I kept mine about 2 inches from the bottom of my tank. (mine was a 10 gallon tank)by ShoppinIsGreat8/21/2016Was this answer helpful? (6) (0)Was this answer helpful?
- The red light turns on when it's actually heating, and it shuts off when the water is between 78-80 degrees. Mine has never gotten warmer than 80 and has never gone below 77.by SpeechlessinSeattle9/29/2016Was this answer helpful? (6) (0)Was this answer helpful?
- I'm glad you have your betta in a 5 gallon tank anything smaller is not good for your fish, as for your heater the red light will come on and stay on until the water is the right temp and then go out. it would be a good idea to get a thermometer, I have one in mine and the temp is 78 that's a good temp for your fish.by catben12/1/2016Was this answer helpful? (6) (3)Was this answer helpful?
- The red light is only on whenever it is heating.by CaityJ899/29/2016Was this answer helpful? (4) (0)Was this answer helpful?
- No, the red light doens't have to be on all the time. It is on means the water temperture is below the preset and it is heating up. It is off means the water temperture is at the preset temperture or highger. (By the way, the fancy or exotic gold fish do need a prefered tank temperture (65 F-75F). For all other like koi, commet or common goldfish (feeder). They don't need a heater at all.by Fishhobby2/3/2016Was this answer helpful? (3) (0)Was this answer helpful?
- The red light will not stay on the whole time. I would suggest getting a thermometer when you get the chance. It will show that the heater is keeping the water heated at a steady degree. (I like the stick on thermometer you put on the outside of the tank.)by ShoppinIsGreat9/29/2016Was this answer helpful? (4) (0)Was this answer helpful?
- The red light means it is on, it will turn off when the surrounding water is 78*. When its off that means the water is the preferred temperature.by KMJ8612/19/2014Was this answer helpful? (2) (1)Was this answer helpful?
- The Red Light only turns on when the heater is heating the water, it will turn on periodically throughout the day whenever the water drops below the set temperature & it will turn off once it has reached the set temperature. This heater is not adjustable & it's set temperature is 78 Degrees F.by StubbyMcNubb12/19/2014Was this answer helpful? (5) (0)Was this answer helpful?
Q. I just bought a fish tank heather from the store. only lighted up for less than a min. water is not warming up at all. it's now more than 40 hrs.
- It works slowly. Check with a thermometer. If water cools below 72 than you got a faulty equipment.by Airfliyer11/20/2015Was this answer helpful? (2) (0)Was this answer helpful?
- Yours must be malfunctioning. It would work instantly if it was working properly.by SpeechlessinSeattle11/20/2015Was this answer helpful? (1) (0)Was this answer helpful?
- Do you have a thermometer? If the light turned off that means it is at optimal temperature.by FishLizardDogChickenlover1/18/2012Was this answer helpful? (0) (0)Was this answer helpful?
- Call Tetra Customer Service. Sure sounds like that heater was defective. They have a good return policy within 30 days. Or take it back to the store where you purchased it, with the receipt.by TetraGal11/20/2015Was this answer helpful? (2) (0)Was this answer helpful?
- I have the same problem with mine too. But I think this is how it is with these little "pre set" heaters. I had one before this that was a different brand than this one and it too had the very same problem. My tank is only 2 gallons and these heaters barely kept it at 72 degrees. That is just not warm enough. And the same thing is going on with mine as with yours. The red light comes on when I first plug it in for a few minutes then goes off and I never see it come on again unless I un plug it and plug it back.by Ladybat11/20/2015Was this answer helpful? (2) (0)Was this answer helpful?
- Then you should return or exchange for a new one . Its might got defected.by Fishhobby8/31/2011Was this answer helpful? (0) (0)Was this answer helpful?
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