Tetrafauna Aquatic Reptile Aquarium Heater, 100-watt

By Tetrafauna
Rated 2 out of 5 stars
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About This Item

  • Helps keep water at a constant temperature of 78 degrees for frogs, newts and turtles.
  • 100-watt heater is compact and completely submersible.
  • Designed with a cover to help keep your pet safe.
  • Features an 8-foot cord that can be placed in any direction.
  • Comes with two oversized suction cups to help keep the heater securely in place.

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Questions & Answers

19 Customer Questions

how do you known it's working ?
Answer by Chewy • Dec 07, 2019
The indicator light will turn on when the heating element is actively heating. A thermometer should be kept on the tank and should be checked at least once a day.
If the water warm already will the red light come on my thermoset says 89.8F will the light still come on?
Answer by Chewy • Aug 04, 2020
The red light will turn on and off as needed to gradually warm the tank. If the water temperature is already warm enough, the light and heater will not turn on. As a precaution, we always recommend using an aquarium thermometer to gauge the temperature of the water and ensure it is being heated correctly.
Can you use this in a tank that has a turtle and snails?
Answer by Chewy • Jun 16, 2020
This submersible heater may be used in a tank with a turtle and snails.
Can this be used in a small pond
Answer by Chewy • Dec 08, 2021
This heater is intended for indoor aquarium use.

ReviewsWrite a Review

2
Rated 2 out of 5 stars
20 Reviews
50%
Would recommend to a friend
1
60
60%
2
10
10%
3
10
10%
4
10
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20 Customer Reviews

Rated 1 out of 5 stars
By Dognove15 on Aug 7, 2022

Not good heater not happy

The heater is not working correctly and it's not keeping the water hot

Rated 5 out of 5 stars
By VickieJ on Sep 23, 2021

Love it! No problems.

Works perfectly. Had it almost 2 years. Have it set up in a 40 gal. Wading pool on covered patio. However, when temp dips into 40’s and below we bring our aquatic turtle indoors in a 20 gal aquarium.

Rated 1 out of 5 stars
By raul on Oct 28, 2021

POOR HEATER

Doesn’t heat up to 78 degrees at all stays at 74 for my 27 gallon tank.

Rated 4 out of 5 stars
By MacCentris on Aug 30, 2020

Operating red light not mentioned anywhere...

I read all the instructions, wondering what the red light meant in the heater as I plugged it in. It had me perplexed for a LONG time because at some point it turned off completely. I wanted to know what that meant (right away my first though was that it was broken). I looked everywhere and I found the reviews in the Tetrafauna website where people were complaining about how the light was mostly off. I found that the light only turns on, when the heater is actually heating the tank, and that the heat mechanism can be "monitored" with this light (when it's on, it's heating the tank, turns off if heating isn't necessary). I am not too fond of this heater because the water feels a little cold to the touch and this mysterious light really isn't helping. I'm in need of an aquarium thermometer (a lot of aquarium heaters bring a strip thermometer to help you with that). Otherwise, I think I'm happy with the purchase.

Rated 2 out of 5 stars
By Trace on Sep 1, 2020

Terrible Product

Like all the reviews say, this is a terrible product. Light is on, but tank is not at 78 degrees, more like 60 degrees. Then stops working altogether after a very short time. I have been through many. But, I am unable to find anything else! No to the undertank heaters. Almost all submersible heaters are upright and cannot lay horizontal in a low water tank. Almost all are teeny tiny wattage also, like 5 watts. I have a two 40 gallon tanks, so at least 100 watts/tank is needed. Do not get why other heaters have not been made available. I feel exploited but do not see any alternatives.

Rated 1 out of 5 stars
By Diesel on Sep 28, 2020

I’m So Upset.

I got this item, read the directions, followed them, and it doesn’t work. No red light, and it’s not heating anything.

Rated 3 out of 5 stars
By Pete on Jun 16, 2020

Keep a spare

These work great. Keep the aquarium at 76. They stop working after 10 months, like clockwork. I always keep a spare and keep an eye on the thermometer sticker on the side of my tank. I am on my fourth one. All have been the same.

Rated 1 out of 5 stars
By babi on Apr 30, 2020

Uhmmmmmmmm

So...when i first got it it worked perfectly fine. But then it kept turning off and then completely stopped working the day after. I do not recommend at all.

Rated 2 out of 5 stars
By Turtle on Apr 28, 2020

Don't Waste Your Money

Junk turtles started acting weird not eating an checked the water it was only at 60° even though heater was working.

Rated 1 out of 5 stars
By MRMR on May 20, 2020

Do not buy

Do not buy this water heater. Does not work at all and wish I read reviews before buying