---
product_id: 163054179
title: "Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W"
brand: "bnzaq"
price: "€ 14.08"
currency: EUR
in_stock: true
reviews_count: 8
category: "Bnzaq"
url: https://www.desertcart.pt/products/163054179-fish-tank-aquarium-heater-adjustable-temperature-submersible-thermostat-heater-25w
store_origin: PT
region: Portugal
---

# Power options 25W-300W Fully submersible & shatterproof Adjustable 68°F-90°F Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W

**Brand:** bnzaq
**Price:** € 14.08
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your aquatic friends cozy and thriving — because your fish deserve the best!

## Quick Answers

- **What is this?** Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W by bnzaq
- **How much does it cost?** € 14.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/163054179-fish-tank-aquarium-heater-adjustable-temperature-submersible-thermostat-heater-25w)

## Best For

- bnzaq enthusiasts

## Why This Product

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

## Key Features

- • **Robust & Safe Build:** Crafted with shatterproof glass and BPA-free plastic to ensure durability and fish safety.
- • **Smart Auto-Regulation:** Heater automatically cycles on/off to maintain consistent water temperature without hassle.
- • **Energy-Efficient Heating:** Multiple wattage options (25W to 300W) to perfectly match tank sizes up to 79 gallons.
- • **Sleek & Space-Saving Design:** Compact, lightweight, and equipped with adjustable suction cups for easy, discreet installation.
- • **Precision Temperature Control:** Customize your aquarium’s climate from 68°F to 90°F for optimal fish comfort.

## Overview

The Bnzaq Fish Tank Aquarium Heater offers adjustable temperature control from 68°F to 90°F, suitable for tanks ranging from 8 to 79 gallons with wattage options between 25W and 300W. Made from shatterproof glass and BPA-free plastic, it ensures safety and durability. Its automatic thermostat maintains a stable environment, mimicking natural conditions for tropical fish. Lightweight and fully submersible, it fits seamlessly in any aquarium setup.

## Description

About Bnzaq Aquarium HeaterThe aquarium heater is made of shatterproof glass that not easy to broken.The temperature is adjustable(68°F~90°F) that suit more species of fish and let your fish enjoy more comfortable environment.Specification:*Heater Length25W：7.7"50W：7.7"75W：7.7"100W：8.7"200W：10.6"300W：12"*Heater Capacity25W: >8 gallons tank50W: >13 gallons tank75W: >24 gallons tank100W: >40 gallons tank200W: >53 gallons tank300W: >79 gallons tank

Review: Good product - Thy work well
Review: So cool! - I love the twist top and moveable red piece in there. It's nice and sleek, not bulky like other heaters. I have a 10 gallon tank and within minutes of putting it in, the light came on and warmed up the tank. I love the adjustable suction cups too. And for that price, blows the other heater out of the water. I will update if any issues arise.

## Features

- [ADJUSTABLE TEMPERATURE]Temperature range: 68°F~90°F.25W heater is suitable for fish tank under 8 gallons,Length:7.7".Easy to adjust temperature by the aquarium heater that suit more species of fish.
- [AUTOMATIC CONSTANT TEMPERATURE]When water temperature reaches set value,the indicator light will be OFF and the heater will automatically stop heating.The heater will automatically start heating and indicator light will be ON if water temperature is low.You could place heater horizontally or vertically.
- [NO LONGER CHILL YOUR FISH]Automatically regulate and maintain water temperature,imitate the original ecological environment for your tropical fish.Provided fish with warm water environment.Perfect to apply to fresh and salt water.
- [PREMIUM SHATTERPROOF GLASS]Made of shatterproof glass and BPA-free plastic.Bnzaq aquarium heaters are fully submersible and safe for fish without any toxic substance producing.
- [ATTENTION]Please place the heater near place (filter or pump) of water flowing to keep more even water temperature.Unplug the heater 30 minutes early when changing the water for the fish tank.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Bnzaq |
| Customer Reviews | 4.2 out of 5 stars 2,967 Reviews |
| Item Weight | 0.16 Kilograms |
| Material | Shatterproof Glass, BPA-free Plastic |
| Shape | Rectangular |
| Special Feature | Lightweight |
| Tank Volume | 8 Gallons |

## Product Details

- **Brand:** Bnzaq
- **Material:** Shatterproof Glass, BPA-free Plastic
- **Tank Volume:** 8 Gallons
- **Special Feature:** Lightweight
- **Item Weight:** 0.16 Kilograms
- **Shape:** Rectangular
- **Specific Uses For Product:** Aquarium Heating
- **Style:** Modern
- **Color:** Multicolor
- **UPC:** 782500149068

## Images

![Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W - Image 1](https://m.media-amazon.com/images/I/71DEOaqmpbL.jpg)

## Available Options

This product comes in different **Pattern, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by B***A on December 1, 2025*

Thy work well

### ⭐⭐⭐⭐⭐ So cool!
*by C***D on July 18, 2023*

I love the twist top and moveable red piece in there. It's nice and sleek, not bulky like other heaters. I have a 10 gallon tank and within minutes of putting it in, the light came on and warmed up the tank. I love the adjustable suction cups too. And for that price, blows the other heater out of the water. I will update if any issues arise.

### ⭐⭐⭐⭐ Turn Off Heater During Water Changes
*by S***. on November 18, 2020*

This heater broke into two pieces after only one month. At first I was upset about the product quality, but did a little research and discovered glass heaters often break if they're powered on and the water level drops beneath a certain point (like during water changes). So that's my fault, though it would've been nice if that direction was included with the heater. Otherwise, it had worked well while I had it and I am glad it broke into two easily retrievable pieces, rather than fully shattering.

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-14*