---
product_id: 209941117
title: "Tetra 26447 Submersible Aquarium Heater, 50-Watt"
brand: "tetra"
price: "₨1505"
currency: SCR
in_stock: false
reviews_count: 5
category: "Tetra"
url: https://www.desertcart.sc/products/209941117-tetra-26447-submersible-aquarium-heater-50-watt
store_origin: SC
region: Seychelles
---

# 50-watt power for efficient heating Submersible design for full underwater use Auto thermostat keeps water steady at 78°F Tetra 26447 Submersible Aquarium Heater, 50-Watt

**Brand:** tetra
**Price:** ₨1505
**Availability:** ❌ Out of Stock

## Summary

> 🌊 Keep your aquatic world perfectly cozy — because your fish deserve the best!

## Quick Answers

- **What is this?** Tetra 26447 Submersible Aquarium Heater, 50-Watt by tetra
- **How much does it cost?** ₨1505 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/209941117-tetra-26447-submersible-aquarium-heater-50-watt)

## Best For

- tetra enthusiasts

## Why This Product

- Trusted tetra brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Versatile:** Ideal for tanks from 2 to 30 gallons, fitting seamlessly into your workspace or home
- • **User-Friendly Setup:** Plug-and-play design with a long cable for flexible aquarium placement
- • **Trusted Brand Quality:** Made in the USA by Tetra, a leader in aquarium care products
- • **Energy Efficient Heating:** 50-watt power ensures optimal warmth without spiking your energy bill
- • **Precision Temperature Control:** Maintains a consistent 78°F to create the perfect aquatic environment

## Overview

The Tetra 26447 Submersible Aquarium Heater is a reliable 50-watt heater designed for aquariums between 2 and 30 gallons. Featuring an electronic thermostat, it automatically maintains a steady 78°F water temperature, ensuring a stable and healthy environment for your fish. Its compact, fully submersible design and long cable make installation effortless, while Tetra’s trusted manufacturing guarantees quality and durability.

## Description

This Tetra submersible 50-watt heater is very easy to use for aquariums ranging from 2 to 30-gallons. The electronic thermostat automatically adjusts heat output to keep the water at a constant 78 deg

Review: it works fine. it keeps my tank around 77-78. i only use for a week but seems ok. the betta fish i have dont seem to have any problem with it. the cable is long enough. i would recommend for a small tank 5 gallon max 10 gallon. i wish there was a button to control the temperature as i would want it slightly hotter but this temperature is ok.
Review: Mini akvaryumuma uydu. Çok rahatım. Balığım üşüdü mü diye düşünmüyorum. 👍🏻

## Features

- Power: 50-watt
- Easy to use for aquariums ranging from 2 to 30-gallons
- The electronic thermostat automatically adjusts heat output to keep the water at a constant 78 deg

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000OQO69Q |
| Best Sellers Rank | #57,944 in Pet Supplies ( See Top 100 in Pet Supplies ) #251 in Aquarium Heaters & Chillers |
| Country of Origin | USA |
| Item Dimensions LxWxH | 13.3 x 4.1 x 8.9 Centimeters |
| Item Weight | 222 g |
| Item model number | 26447 |
| Manufacturer | Tetra |
| Net Quantity | 1.0 Count |
| Product Dimensions | 13.34 x 4.11 x 8.89 cm; 222.26 g |

## Images

![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 1](https://m.media-amazon.com/images/I/71CH35bZjVL.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 2](https://m.media-amazon.com/images/I/81zeKALepDL.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 3](https://m.media-amazon.com/images/I/71NRbk83Y-L.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 4](https://m.media-amazon.com/images/I/61IvRyE83GL.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 5](https://m.media-amazon.com/images/I/61fJ4zrsYaL.jpg)

## Questions & Answers

**Q: would this work in a one gallon tank?**
A: I wouldnt because the temp on this can go up to 79 degrees in a 10 gallon tank, for that reason i purchased a 10 watt for my 1 gallon tank and it keeps the tank at a perfect temp of 78. Check out the Marina C10 Submersible on Amazon for $10.00.

**Q: Description says "the ht30 is adjustable between 72 degrees f and 85 degrees f". ok, why does the one i received say not adjustable, preset at 78?**
A: All of the HT Heaters are preset now.  Unfortunately, this is an old image and old description of the former HT 55. The description seems to have been translated to the HT 100 as well. Tetra is working to correct these issues immediately. We appreciate your bringing it to our attention.  If you need any other assistance, please contact the Tetra Consumer Relations Team at 1-800-526-0650.

**Q: Will this be okay in a 3 gallon betta bowl i'm making? if not any recomendations?**
A: Yea i think so. I seriously look at this every day and im sooooooooooo glad i bought it. My betta looked so depressed before in his bowl because my house gets down to 60 degrees and his water was getting cold and now he is so happy his water stays 78 and he swims like a happy fish and has a lot of  bubbles on top (means there happy). Its so crazy that warmer* water can make a fish soooo happy. This is a must. Yes buy it for a 3 gallon tank- i think it will work just fine and your fish will LOVE IT i promise! Let me know how it works out for you- because im so glad i got it!

**Q: Does it turns off automatically**
A: When it reaches the right temp. it automatically shuts off. When the light on it is green, it's heating; when the light is red, it's off

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***Y on 24 April 2025*

it works fine. it keeps my tank around 77-78. i only use for a week but seems ok. the betta fish i have dont seem to have any problem with it. the cable is long enough. i would recommend for a small tank 5 gallon max 10 gallon. i wish there was a button to control the temperature as i would want it slightly hotter but this temperature is ok.

### ⭐⭐⭐⭐⭐ Review
*by T***I on 4 October 2025*

Mini akvaryumuma uydu. Çok rahatım. Balığım üşüdü mü diye düşünmüyorum. 👍🏻

### ⭐⭐⭐⭐⭐ Review
*by P***. on 18 July 2025*

Excelente producto! Lo compré para usarlo en la tina de agua de mi tortuga que necesita estar entre 24° - 27° C y en épocas de frío baja mucho la temperatura. Mantiene la temperatura deseada calentando aprox. 60L de agua. Mi tortuga y yo estamos felices con la compra :)

## Frequently Bought Together

- Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt, 2-10 Gallon
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic
- Tetra Water Cleaner Gravel Siphon for Aquariums, Easily Clean Freshwater Aquariums

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-20*