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DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W

Based on 747 reviews
Condition: New
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$7.79
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Availability: In Stock.
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Arrives Monday, Nov 2
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At a glance

Condition
New
Size
50Watt
Model
H-200
Weight
7 oz

Features 5

  • 50W DaToo Aquarium Heater: A suitable temperature is very important for our beloved fish. No suitable temperature, our fish will not survive healthy. How to create this comfortable temperature? DaToo will help you. The DaToo Submersible Aquarium Heater is a system that create a warm and comfortable living environment for your lovely fish. Select DaToo Aquarium Heater, Let us care about your fish starting from the water temperature.
  • Adjustable Temperature: Only need turn the knob on the top of the DaToo fish tank heater, You can easily get the temperature you want(68 to 93F) and you can read the temperature you set by the dial of the aquarium heater. Perfect Thermostat system to ensure that your beloved fish can be happy and comfortable life. Very Convenient !
  • Sturdy And Durable: Still worried about the heater will be broken?Now let's say goodbye to this worry. The shell of the DaToo Aquarium Heater is made with Shatterproof, Corrosion resistant, Wear-resistant microcrystalline glass(glass-ceramics), can be used in fresh water and salt water.The heating part is made of nickel-chromium alloy, ensure superior heat transfer and enhanced service life. Select DaToo Fish Tank Heater, Let it serve your fish forever.
  • BPA Free And Energy Saving: Every plastic component of the DaToo Fish Tank Heater is made with durable, high-quality, BPA-free plastic. The process of heating does not produce invisible toxins. This means it is safe not only for your fishes, but for you as well. Stepwise heating mode, it will automatically turn on and off to keep your set temperature, reduce electricity consumption. Select DaToo Aquarium Heater, not only care about your fish, but also save electricity fee for you.

Description

Product Features Turn the top knob, easily set the temperature. You can read the temperature you set by the dial of the heater. Shatterproof, Corrosion resistant, Wear-resistant, sturdy and durable. Superior heat transfer and enhanced service life. The process of heating does not produce invisible toxins. Safe for you and your beloved fish. Stepwise heating mode, automatically turn on and off, reduce electricity consumption.

Specs 7

Package Dimensions 13.27 x 2.95 x 1.65 inches; 7.05 ounces
Item model number H-200
Manufacturer DaToo
Item Weight 7 ounces
Item Package Dimensions L x W x H 13.27 x 2.95 x 1.65 inches
Brand Name DaToo
Size 50Watt

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Great heater
Size: 50Watt
So far so good. The suction cups holds really well and the dial is easy to turn and set. I like how it shows the numbers on the front and you can easily micro adjust for the right temperature. There's an orange light that tells you when it is heating. Bought two of them one for a 10 gallon and one for a 5.5, both work perfectly. ... show more
Reviewed in the United States on January 15, 2026 by Zach

5 gallon submersible heater
Size: 50Watt
It’s a great heater for a small tank works good and it’s preset
Reviewed in the United States on June 21, 2026 by jon

Great quality product at a great price
Size: 50Watt
Great quality excellent price easy to use temperature is correct
Reviewed in the United States on July 27, 2026 by Jimmy Thompson

Nice works as intended
Size: 50Watt
Does what it's supposed to seems to work so far we'll see how long it lasts only had for a few months good suction cups
Reviewed in the United States on August 6, 2026 by L.J.

Small aquarium heaters
Size: 50Watt
Good heater for 10 gallon aquarium
Reviewed in the United States on July 9, 2026 by Susan Henderson

Not Effective and Potentially Dangerous!
Size: 50Watt
I bought this heater for a 5-gallon tank and despite following instructions for placement and having a filtration, it DID NOT keep a consistent tank temperature. It was set to 85 degrees, which it would get there but would get extremely cool before coming back on. After noticing that it wasn’t kicking back on for hours though the water was cool, I decided to get a new heater. I unplugged it before removing it and heard it sizzling! I looked at it and the plastic tip was melting! In addition to the electric cord being way too short, I do NOT recommend buying this product at all. It’s worth it to spend a few extra bucks on a quality heater to keep your fishies stress free. ... show more
Reviewed in the United States on July 20, 2023 by Juell H.

Can't tell if it is working....
Size: 50Watt
Is the light supposed to stay on all the time, or only when it is actively heating? I saw the light come on as soon as I plugged it in, but not any more. So I'm not sure if it is not working or just in an off cycle. UPDATE: It is working fine; it just scared me that it stayed off so long. Prior to this, I had a small heater that stays on and just keeps water 5-10 degrees above ambient temp. It allowed too much variation in water temp, so that it got too cool at times. My betta had gotten lethargic and stopped eating, and I read that can be because he is cold. SO...I bought this one. It is working great. My betta is much more active now, back to eating and swimming happily. ... show more
Reviewed in the United States on March 9, 2023 by J9

Caution! READ EDIT
Size: 50Watt
EDIT! UNPLUG YOU HEATER BEFORE YOU DO A WATER CHANGE. DROPPING THE WATER LEVEL WILL CAUSE YOUR HEATER TO CRACK!! Overall, I had been happy with these water heaters. I do have to warn you about what happened to me. The integrity of the water seal was compromised, water leaked inside and this sent the water temp of my aquarium soaring. You can see the melted plastic at the bottom. Fortunately I caught it before any of my fish died. Be careful when using this heater. ... show more
Reviewed in the United States on July 26, 2023 by K²
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