---
product_id: 70974043
title: "Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers"
brand: "sunyiny"
price: "€ 27.71"
currency: EUR
in_stock: false
category: "Pet Products"
url: https://www.desertcart.com.cy/products/70974043-submersible-aquarium-heater-300w-100w-200w-anti-explosion-fish-tank
store_origin: CY
region: Cyprus
---

# Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers

**Brand:** sunyiny
**Price:** € 27.71
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers by sunyiny
- **How much does it cost?** € 27.71 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/70974043-submersible-aquarium-heater-300w-100w-200w-anti-explosion-fish-tank)

## Best For

- sunyiny enthusiasts

## Why This Product

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

## Description

Size:One Size





&#xA0;|&#xA0;

Color:100W






















The temperature of your aquarium is an important factor in the comfort and well-being of your fish. Unlike humans and other mammals, fish do not produce their own body heat. They must rely on the temperature of the water to maintain their body temperature.  This makes it very important that you keep your aquarium at the proper temperature for your pets.    Our High Quality Quartz Glass Submersible Aquarium Heater is here for you! You will get more consistent and efficient heating with it.    Finding the Right Aquarium Heater Size  - It&#x2019;s the totally submersible, it can&#x2019;t work without submersion, plug the heater in while it was in water, if you change the water for fish tank, power 10 minutes in advance please. - The red light indicates that the heater is working, you should rotate the red botton to adjust the suitable temperature to what you want before put it into the tank (but must be higher than normal water temperature).  - The heater should be placed in the water flow and not in a stagnant area. -The heater tube length is important because heat rises. It should match the height of your aquarium. Our Submersible Heater 100W tube length is 10.4inch.  -Using the Aquarium Heater Size Guide, find the size of your aquarium in the left-hand column and move to the column that shows the number of degrees the aquarium needs to be heated. If the heating requirement is between levels, move up to the next larger size.  -Heaters should be installed at opposite ends of the aquarium to heat it more evenly.  -In larger tanks, or a situation where the room temperature is significantly below the desired water temperature, two heaters may be required.  Temperature display scale can be set between 20&#xB0;~34&#xB0;C(68&#xB0; F - 93&#xB0; F). More convenience, there is two easy suction cups to attach to aquarium. Package include:  1: 1 Aquarium Heater 2: 2 Suction Cups

## Features

- Made of quartz glass,double seal material,high temperature resistant and explosion-proof,shatter-resistant construction, ensures safe operation and keep your fishes from scalding and punching.
- Visible temperature setting,precise temperature setting to 1-degree F, temperature setting range: 20°~34°C(65° F - 93° F)，automatic adjustment temperatures,the cord is about 2.63ft.
- Fully submerged design,which can maintain the set temperature accurately, equipped with strong support hooks and suckers, fully submersible working on the maximum depth 3.9ft of water,mains power indicator for peace of mine.
- With sensitive temperature regulator and over-temperature protection device, reliable and high impedance circuit heating wire heating, keep the fish tank water temperature stability, extend its service life.
- Perfect for fresh and saltwater,submersible power: 100w, ideal for 32 gallon, provide a constant warm environment for your tropical African cichlids or other fish to stay healthy.

## Images

![Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers - Image 1](https://m.media-amazon.com/images/I/41TeUbTPdQL.jpg)
![Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers - Image 2](https://m.media-amazon.com/images/I/519bXsr3FcL.jpg)
![Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers - Image 3](https://m.media-amazon.com/images/I/51LHPEnbNwL.jpg)
![Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers - Image 4](https://m.media-amazon.com/images/I/513uevvoLgL.jpg)
![Submersible Aquarium Heater 300w 100w 200w, Anti-Explosion Fish Tank Water Heater and Thermometer with Adjustable Temperature for 20 Gallon,30 Gallon, 50 Gallon Tank,with 2 Pieces Suction Cup Suckers - Image 5](https://m.media-amazon.com/images/I/41bZ7eZ0yKL.jpg)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-01-30*