---
product_id: 174013013
title: "PULACO 25Watt Mini Aquarium Submersible Betta Heater with Free Thermometer Strip for 1-6 Gallon Fish Tanks (Preset Temperature 78℉)"
brand: "pulaco"
price: "₨429"
currency: SCR
in_stock: true
reviews_count: 13
category: "Pulaco"
url: https://www.desertcart.sc/products/174013013-pulaco-25watt-mini-aquarium-submersible-betta-heater-with-free-thermometer
store_origin: SC
region: Seychelles
---

# Fits 1-6 gallon tanks 25W precise heating power Preset 78℉ ±3℉ accuracy PULACO 25Watt Mini Aquarium Submersible Betta Heater with Free Thermometer Strip for 1-6 Gallon Fish Tanks (Preset Temperature 78℉)

**Brand:** pulaco
**Price:** ₨429
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your betta’s world perfectly cozy—effortless warmth, zero stress!

## Quick Answers

- **What is this?** PULACO 25Watt Mini Aquarium Submersible Betta Heater with Free Thermometer Strip for 1-6 Gallon Fish Tanks (Preset Temperature 78℉) by pulaco
- **How much does it cost?** ₨429 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/174013013-pulaco-25watt-mini-aquarium-submersible-betta-heater-with-free-thermometer)

## Best For

- pulaco enthusiasts

## Why This Product

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

## Key Features

- • **Instant Heat Activation:** Red light signals heating; green light confirms stable temperature—smart and simple.
- • **Compact & Versatile Design:** Mini heater fits discreetly in any 1-6 gallon aquarium, acrylic or glass.
- • **Effortless Temperature Control:** Preset at 78℉ for perfect betta comfort—no fiddling required.
- • **Safety-First Submersible Build:** Fully submersible with CE certification and 12-month warranty for peace of mind.
- • **Bonus Thermometer Strip Included:** Quick visual temp check without extra gadgets—stay in the know at a glance.

## Overview

The PULACO 25W Mini Aquarium Heater is a compact, submersible device designed for 1 to 6 gallon tanks, preset to maintain a stable 78℉ temperature with ±3℉ accuracy. Featuring easy plug-and-play operation with indicator lights, it includes a free thermometer strip for quick temperature checks. Built with safety and durability in mind, it comes with a 12-month warranty and is ideal for bettas and small aquatic setups.

## Description

desertcart.com: PULACO 25Watt Mini Aquarium Submersible Betta Heater with Free Thermometer Strip for 1-6 Gallon Fish Tanks (Preset Temperature 78℉) : Pet Supplies

Review: Great product, perfect for what I need! - I bought 2 of these and received them at the same time. 1 keeps the tank at 78 per the attached temp strip, the other keeps it at 76 per the attached temp strip but it is reading at the 77.7-79.6 when I temp the tanks with a thermometer. This is in range of what I need so it works perfect for me, both tanks are 2 gallons with a small amount of gravel in the bottom and I'm raising triops in them.
Review: Easy to set up and reliable - I’ve been using this heater for my aquarium plants, and it works really well! It’s small, easy to install, and keeps the water at a steady, consistent temperature, which is exactly what my plants need to thrive. The free thermometer strip is a nice bonus, making it simple to check the temperature at a glance. It’s quiet, reliable, and I feel confident that my aquarium stays safe and healthy with this little heater in place.

## Features

- 【Betta Heater】: This Fish Tank Heater should be 100% submerged into water, Ideal for small glass or acrylic desktop aquariums up 1 to 6 Gallons, not suitable for less than 1 gallon tank.
- 【Quick and Easy Installation】: Vertical or horizontal placement using, Aquarium heater automatic temperature control 78℉, no need to adjust temperature, easy to operate, fishes happy.
- 【How it Works】: Plug in, red light turns on, the heater will start working until water temperature up to 78°F, and red light off, then the green light will turn on, heater stop working and keeping constant temperature 78°F. Accuracy：±3°F
- 【Note】: Do not operate or leave product plugged in when your water tank is out of water, heater should be fully submerged into water. Please install a water pump or filter to help water circulating while heating.
- 【SATISFACTION GUARANTEED】: Our Aquarium Heater is built with durability in mind and safety for every design. In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081VN41FQ |
| ASIN  | B081VN41FQ |
| Age Range (Description) | Adult |
| Best Sellers Rank | #2,607 in Pet Supplies ( See Top 100 in Pet Supplies ) #5 in Aquarium Heaters |
| Brand | PULACO |
| Brand Name | PULACO |
| Color | Transparent |
| Customer Reviews | 4.2 4.2 out of 5 stars (11,763) |
| Date First Available | November 18, 2019 |
| Date First Available  | November 18, 2019 |
| Directions | Adults 18 years and older |
| Display Type | Analog |
| Immersion Depth | 12 Inches |
| Included Components | heater |
| Indoor/Outdoor Usage | Indoor |
| Item Dimensions LxWxH | 5.5 x 1.2 x 2.7 inches |
| Item Length | 4.9 Inches |
| Item Package Dimensions L x W x H | 5.51 x 3.62 x 1.81 inches |
| Item Weight | 4.2 ounces |
| Item model number | PL-168 |
| Item model number  | PL-168 |
| Manufacturer | PULACO |
| Manufacturer  | PULACO |
| Model Name | PL-168 |
| Number of Items | 1 |
| Outer Material | Glass |
| Power Source | Internal Power Source |
| Product Care Instructions | Wipe Clean |
| Product Dimensions  | 5.5 x 1.2 x 2.7 inches; 4.23 ounces |
| Response Time | 500 Milliseconds |
| Reusability | Reusable |
| Size | 25W up 1 to 6 Gallons |
| Special Feature | High Accuracy |
| Specific Uses for Product | fish tank heater |
| Specification Met | CE |
| Style | Classic |
| Target Audience Keyword | fish |
| UPC | 763032017889 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 93 Degrees Fahrenheit |
| Warranty Description | 1 YEAR |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** PULACO
- **Color:** Transparent
- **Display Type:** Analog
- **Included Components:** heater
- **Outer Material:** Glass
- **Product Care Instructions:** Wipe Clean
- **Special Feature:** High Accuracy
- **Specification Met:** CE
- **Unit Count:** 1.0 Count

## Images

![PULACO 25Watt Mini Aquarium Submersible Betta Heater with Free Thermometer Strip for 1-6 Gallon Fish Tanks (Preset Temperature 78℉) - Image 1](https://m.media-amazon.com/images/I/61PrJ9gAPSS.jpg)

## Available Options

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

## Questions & Answers

**Q: If it can horizontally, does that mean it can be placed under gravel/substrate?**
A: No it can’t be under the gravel

**Q: I want this for a tank with a beta - no water current. Is this going to work you think?**
A: There is NO fish in existance that can survive and thrive without filtration...even bettas. If you have a betta and no filter, thus no water movement, you are killing your fish. Please...do some research. Don't fall prey to the misinformation that they little guys can live in a puddle. Thats as bad as saying a goldfish can live in a bowl.

**Q: Will this overheat a one gallon tank?**
A: I bought it for my 1.5 gallon tank and it made my tank 93 degrees it does not shut off like it's suppose too!

**Q: It says under 6 gallons. So if i have a 6 gallon round that a bette stays in would it be good for that?**
A: Bettas should have a MINIMUM of a 3 gallon tank WITH filtration AND heater. It is a myth that they can survive and THRIVE in anything smaller. They really should have a 5 gallon tank but if the tank is well planted with live plants to help with nitrate removal, they can live in a 3 gallon. Please do research on this. There are lots of good videos on youtube on how to take proper care of a betta and what is flat out cruelty. A bowl is basically the equivalent to keeping your dog in a closet and never scooping their poop.  Except bettas have to breath it too.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product, perfect for what I need!
*by B***Y on January 10, 2026*

I bought 2 of these and received them at the same time. 1 keeps the tank at 78 per the attached temp strip, the other keeps it at 76 per the attached temp strip but it is reading at the 77.7-79.6 when I temp the tanks with a thermometer. This is in range of what I need so it works perfect for me, both tanks are 2 gallons with a small amount of gravel in the bottom and I'm raising triops in them.

### ⭐⭐⭐⭐⭐ Easy to set up and reliable
*by D***E on December 22, 2025*

I’ve been using this heater for my aquarium plants, and it works really well! It’s small, easy to install, and keeps the water at a steady, consistent temperature, which is exactly what my plants need to thrive. The free thermometer strip is a nice bonus, making it simple to check the temperature at a glance. It’s quiet, reliable, and I feel confident that my aquarium stays safe and healthy with this little heater in place.

### ⭐⭐⭐⭐⭐ Heater is keeping my fish cozy! 5 stars!
*by J***D on February 3, 2026*

My fish, Bella, says thank you for this amazing heater. It works great, easy installation, and easy to clean! The only complaint is that the temperature sticker is hard to read. Don’t love this but the main reason I got this was for the heater and that is 5 stars!

## Frequently Bought Together

- PULACO 25W Small Aquarium Submersible Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉)
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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-10*