Zoo Med Turtletherm Heater, 300W

By Zoo Med
Rated 3.9 out of 5 stars
74 Ratings
5 Answered Questions
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Average Price $37
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$38.80 (-39%) Chewy Price
$63.99 List Price
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About This Item

Details

  • Safely heats water up to 78 degrees Fahrenheit (26 degrees Celsius).
  • Digital thermometer display with suction cup mounting makes installation easy.
  • Submersible heater features an automatic shut-off for added safety when the unit is removed from water.
  • Helps your pet maintain an ideal internal temperature and prevent loss of appetite.
  • Great for use with Red-eared Sliders, African Sidenecks, and Musk, Painted and other aquatic turtles.
  • Safely heats water up to 78 degrees Fahrenheit (26 degrees Celsius).
  • Digital thermometer display with suction cup mounting makes installation easy.
  • Submersible heater features an automatic shut-off for added safety when the unit is removed from water.
  • Helps your pet maintain an ideal internal temperature and prevent loss of appetite.
  • Great for use with Red-eared Sliders, African Sidenecks, and Musk, Painted and other aquatic turtles.

Keep your turtle happy and healthy with the Zoo Med Turtletherm Heater. This submersible heater is specially designed to heat your turtle tank. Each unit features a digital thermometer display that supports temperatures up to 78 degrees Fahrenheit, simple suction cup mounting and an automatic shut-off for added safety. Maintaining warm water temperatures can help your turtle regulate his internal body heat and prevent a loss of appetite caused by inconsistent water temperatures. This heater is great for use with Red-eared Sliders, African Sidenecks, and Musk, Painted and other aquatic turtles.

Specifications
Item Number318659
Weight14.96 ounces
Dimensions8.2 x 2.6 x 10.3 inches
Made InChina
Sourced FromUnited States
MaterialPlastic
Reptile TypeBearded Dragon, Frog, Gecko, Hermit Crab, Insect, Lizard, Map Turtle, Painted Turtle, Red-Eared Slider Turtle, Snake, Aquatic Turtle

Instructions

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Fish Type           
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Betta, Bottom Feeder, Cichlid, Goldfish, Marine Invertebrate, Tropical Freshwater

Betta, Bottom Feeder, Cichlid, Goldfish, Marine Invertebrate, Tropical Freshwater

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Tank Size           
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11 to 20 Gallons

11 to 20 Gallons

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Material           
Plastic

Plastic

Glass

Glass

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Ceramic

Ceramic

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Stainless Steel, Glass

Stainless Steel, Glass

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Plastic, Polyurethane

Plastic, Polyurethane

Glass

Glass

Plastic

Plastic

Heater Type           
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Ceramic Heat Emitter

Ceramic Heat Emitter

Under Tank Heater

Under Tank Heater

Ceramic Heat Emitter

Ceramic Heat Emitter

Heating Lamps

Heating Lamps

Under Tank Heater

Under Tank Heater

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Under Tank Heater

Under Tank Heater

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Sourced From           

Frequently bought together

Questions & Answers

5 Customer Questions

will it be too much heat of I only have about 3 gallons of water in the tank?

Answer by Chewy • Nov 12, 2021
We would recommend the Zoo Med 25 watt Paludarium heater for a 3 gallon tank instead. With that small amount of water, the Turtletherm heater will be fluctuating on and off more often.

Can this heater be used in a plastic tank?

Answer by Chewy • Mar 20, 2024
The turtle therm heater can be used in a heavy duty plastic tub. Like the large plastic livestock water tanks.

is this 300 watt heater good for a 60 gallon tank?

Answer by Chewy • Sep 07, 2023
The 50 Watt heater is suitable for up to 15 gallons of water, the 100 Watt heater is suitable for up to 30 gallons of water, the 150 Watt heater is suitable for up to 50 gallons of water, and the 300 Watt heater is suitable for up to 100 gallons of water.

Can this heater be used in an outdoor turtle pond?

Answer by Chewy • Nov 03, 2021
This heater is designed to be used in a tank only.
Reviews
Write a Review
3.9
Rated 3.9 out of 5 stars
74 Ratings
Terms & Conditions
Customer Photos

35 Customer Reviews

Rated 5 out of 5 stars
By Don on Jan 3, 2026

Good Value, Compact Size & Easy to Use

The digital display sets this unit apart from other similarly priced units, it has a nice low profile and is set and forget. Overall an excellent product from brand I trust, now just need to see what the longevity is for this product, as that is the main reason I researched and found this item, the brand I have been using seems to only last for a year of service. While these are fairly inexpensive, in the past my prior brand lasted for several seasons, but they must have made a change because that is no longer the case.

Rated 5 out of 5 stars
By Stefanie on Feb 13, 2026

How small

I have it in a 6ft stock tank with my 12on snapping turtle and it keeps it at 64. I have a lot more water than is called for so I'm happy with that temp over the winter. It's in a 55 degree basement.

Rated 5 out of 5 stars
By Debbie on Dec 22, 2025

Submergible heater

I like the style I like how it tells you the temperature of the water it’s great for my turtle. She doesn’t pick on it and it heats up the whole 90 gallon tank. I have makes her happy.

Rated 5 out of 5 stars
By Jacqueline on Dec 18, 2025

Works great

This heater is holding up great so far, it keeps the tank at a pretty even 78, and it doesn't burn my lizard (who likes to hold it while she sleeps).

Rated 5 out of 5 stars
By Kimberly on Oct 25, 2025

Turtle Proof Heater

My turtle is so tough on anything put in her habitat. We lay this heater down on the bottom and she started using it as a recliner. So far it's been great.

Rated 5 out of 5 stars
By Carolyn on Oct 22, 2025

Outstanding temperature heater

It keeps the temperature accurate and releives worry. Turtleproof so far.

Rated 2 out of 5 stars
By Samuel on May 11, 2025

Frustrating

I like this heater and it works well short term, but this is the third time I've had to replace it in less than 2 years. I'm grateful that Chewy allows replacements, but I think I'll look for a different heater when it comes time to replace it again. I read (and reread!) the instructions, followed all directions correctly, but the heater still stops working after a few months and shows 99 on the screen.

Rated 2 out of 5 stars
By SaNiyah on Jul 26, 2025

Making concerning noises

I’ve had the heater since July 13th and now a week and a half later it’s making hissing noises then the next day a gurgling noise

Rated 1 out of 5 stars
By Della on Oct 29, 2025

Not great

Had for a few months and is not holding heat well

Rated 5 out of 5 stars
By Englishmarie on Oct 14, 2025

Happy turtle

This made my sister turtle very happy.