---
product_id: 218046034
title: "DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker"
brand: "datoo"
price: "¥2815"
currency: JPY
in_stock: true
category: "Da Too"
url: https://www.desertcart.jp/products/218046034-datoo-mini-aquarium-heater-25w-small-fish-tank-heater-25
store_origin: JP
region: Japan
---

# 0.2 inch ultra-compact size 25W precise heating power Rubber seal for leak-proof safety DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker

**Brand:** datoo
**Price:** ¥2815
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your fish cozy with the tiniest powerhouse in town!

## Quick Answers

- **What is this?** DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker by datoo
- **How much does it cost?** ¥2815 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/218046034-datoo-mini-aquarium-heater-25w-small-fish-tank-heater-25)

## Best For

- datoo enthusiasts

## Why This Product

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

## Key Features

- • **Miniature Marvel:** Smallest 25W heater fits tanks 1-6 gallons without crowding
- • **Safety First Design:** Durable quartz glass & rubber seal prevent leaks and hazards
- • **Visual Heat Indicator:** Red/green LED shows heating status at a glance
- • **Bonus Thermometer Sticker:** Free included sticker for easy, real-time temp monitoring
- • **Effortless Perfect Temperature:** Auto-maintains ideal 78℉ for tropical fish comfort

## Overview

The DaToo Mini Aquarium Heater is a compact 25W device designed for small fish tanks (1-6 gallons). It automatically maintains a stable 78℉ temperature ideal for bettas and tropical fish, featuring a durable quartz glass body and leak-proof rubber seal for safety. Its ultra-slim 0.2-inch profile maximizes tank space, while a built-in LED indicator and free thermometer sticker ensure effortless monitoring and care.

## Description

desertcart.com: DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker : Pet Supplies

## Features

- 25W Betta Aquarium Heater: Creating and maintaining a perfect and comfortable water temperature for our cute fish is not easy, which requires a lot of effort. Now DaToo MINI 25W Aquarium Heater can help you make this easier. Precise and constant temperature, no need to set, keep the temperature of fish habitat in the best state at all times. You will find it very easy and happy to take care of pet fish！
- Precise And Constant Temperature: No need to set, DaToo Fish Tank Heater will automatically keep the water temperature of the fish habitat at 78℉. This temperature is very suitable for betta and most tropical fish. When the water temperature is lower than 78℉, the heater starts to heat and the red light is on. When the temperature reaches 78℉, the heater stops heating and the green light is on. DaToo will always maintain this comfortable temperature for your beloved fish!
- The Smallest 25W Betta Heater: For most fish lovers who have small fish tanks of 1 to 5 gallons, a small heater means more space for fish. This is the smallest 25W aquarium heater on the market, only 0.2 inches. No matter how small your fish tank is, it can be used perfectly in it, and you can't even find it. Very MINI!!
- Safe And Durable: Unlike traditional plastic seals, DaToo uses a rubber sealing layer, which ensures that DaToo has better sealing and safety performance, and will never leak electricity or water. Quartz glass material, explosion-proof and crack-proof, more sturdy and durable, without worrying about damage.
- One Year Warranty & Satisfaction Guarantee: This heater is ideal for 1 to 6 gallon small glass or acrylic desktop aquariums. When in use, it needs to be submerged 100% in water. We provide one year warranty and 24 hours professional customer service. Buy With Confidence!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0893T67LX |
| ASIN  | B0893T67LX |
| Additional Features | High Accuracy |
| Age Range Description | Adult |
| Best Sellers Rank | #4,229 in Pet Supplies ( See Top 100 in Pet Supplies ) #4 in Aquarium Heaters |
| Brand Name | DaToo |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,838) |
| Date First Available  | July 17, 2020 |
| Display Type | Digital |
| EU Spare Part Availability Duration | 1 Years |
| Immersion Depth | 0.9 Inches |
| Included Components | Free Thermometer Sticker |
| Indoor Outdoor Usage | Indoor |
| Item Length | 4.9 Inches |
| Item model number  | DT-25A |
| LowerTemperature Range | 78 Degrees Fahrenheit |
| Manufacturer | DaToo |
| Manufacturer  | DaToo |
| Model | DT-25A |
| Model Name | DT-25A |
| Outer Material | Plastic |
| Package Dimensions  | 5.43 x 2.76 x 2.32 inches; 4.23 ounces |
| Part Number | DT-25A |
| Power Source | Corded Electric |
| Product Care Instructions | Wipe Clean |
| Reusability | Reusable |
| Smart Home Compatibility | Not Smart Home Compatible |
| Style Name | Basic |
| UPC | 745408757995 |
| Unit Count | 1.0 Count |
| Upper Temperature Range | 78 Degrees Fahrenheit |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** DaToo
- **Color:** Black
- **Display Type:** Digital
- **Included Components:** Free Thermometer Sticker
- **Outer Material:** Plastic
- **Power Source:** Corded Electric
- **Product Care Instructions:** Wipe Clean
- **Special Feature:** High Accuracy
- **Unit Count:** 1.0 Count

## Images

![DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker - Image 1](https://m.media-amazon.com/images/I/61u1WDt2FpL.jpg)

## Available Options

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

## Frequently Bought Together

- DaToo Mini Aquarium Heater 25W Small Fish Tank Heater 25 Watt with Free Thermometer Sticker
- Ultra Fresh Betta Fish Food, Pro Shrimp Patties, 50% Sword Prawns + Akiami Paste Shrimps, All Natural Protein, Rich in Calcium, for Betta's Healthy Development and Cleaner Water, 0.7 oz
- Tetra BettaSafe, Aquarium Water Conditioner For Bettas, 1.69-Ounce, 50ml, Golds & Yellows (16837)

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**Shop now:** [https://www.desertcart.jp/products/218046034-datoo-mini-aquarium-heater-25w-small-fish-tank-heater-25](https://www.desertcart.jp/products/218046034-datoo-mini-aquarium-heater-25w-small-fish-tank-heater-25)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-16*