---
product_id: 6549137
title: "Marina Betta Fish 8W Submersible Heater"
brand: "marina"
price: "RM108"
currency: MYR
in_stock: true
category: "Marina"
url: https://www.desertcart.com.my/products/6549137-marina-betta-fish-8w-submersible-heater
store_origin: MY
region: Malaysia
---

# 8W power for precise warmth Fits tanks up to 1.5 gallons Durable polymer, tougher than glass Marina Betta Fish 8W Submersible Heater

**Brand:** marina
**Price:** RM108
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your betta’s world perfectly warm and worry-free!

## Quick Answers

- **What is this?** Marina Betta Fish 8W Submersible Heater by marina
- **How much does it cost?** RM108 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/6549137-marina-betta-fish-8w-submersible-heater)

## Best For

- marina enthusiasts

## Why This Product

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

## Key Features

- • **Boost Your Betta’s Vibe:** Create an environment that revives activity, vibrant colors, and fin flair—watch your betta thrive like never before.
- • **Compact & Discreet Design:** Slim profile with suction cup mount fits seamlessly in small tanks up to 1.5 gallons, preserving your tank’s aesthetic.
- • **Precision Warmth, Zero Hassle:** Automatic temperature control keeps your betta’s habitat perfectly cozy without manual fuss.
- • **Safety First with Smart Setup:** Pair with a timer and thermometer to avoid overheating—because your betta deserves the perfect climate, not a sauna.
- • **Built to Last, Built for Betta:** Durable polymer casing resists cracks and breaks, ensuring long-term reliability in your aquarium.

## Overview

The Marina Betta Fish 8W Submersible Heater is a compact, durable polymer heater designed for aquariums up to 1.5 gallons. It automatically maintains a preset temperature ideal for bettas, featuring easy installation with suction cups. For optimal safety and performance, use alongside a timer and thermometer to prevent overheating and ensure a healthy, vibrant aquatic environment.

## Description

The Marina Betta Heater is an automatic, submersible water heater that creates ideal water conditions for bettas to thrive in. The exterior is made of durable polymer, which is more resilient than traditional glass sleeve heaters. The fish aquarium heater is designed to reach and maintain a set temperature for your aquarium water; no manual adjustments required. It has a red indicator light that illuminates when the heater is working. It comes with a suction cup, so you can easily install it against the aquarium window. For more fish tank accessories check out the other Marina products including aquarium filters, filter media, aquarium heaters, aquarium air pumps, aquarium lights, aquarium thermometer, aquarium gravel, aquarium decorations, betta fish accessories, betta fish food, aquatic fake plants, betta tanks, and aquarium stands. Marina has a wide variety of products that are perfect for your pet fish or betta fish to enjoy in any large fish tank, small fish tank, freshwater tank or a saltwater tank.

## Features

- 8-watt submersible fish tank heater for aquariums up to 1.5 gallons (5 L)
- Creates ideal conditions for bettas to live in
- Made of durable polymer, which is tougher than glass
- Easy to install in your betta fish tank; use the suction cups to place on the side of the betta tank
- Automatically reaches set temperature; allowing you to easily maintain your fish aquarium
- Use in combination with the Marina Standing Thermometer (sold separately) for accurate temperature readings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00AE23Z88 |
| Best Sellers Rank | #66,774 in Pet Supplies ( See Top 100 in Pet Supplies ) #156 in Aquarium Heaters |
| Brand | Marina |
| Brand Name | Marina |
| Color | Black |
| Customer Reviews | 4.2 out of 5 stars 3,831 Reviews |
| Global Trade Identification Number | 00015561111829 |
| Included Components | All components listed in the description. |
| Item Highlight | For Fish Tank Aquariums up to 1.5 US Gallons (5 L) |
| Item Length | 7.1 inches |
| Item Type Name | Aquarium Heater |
| Item Weight | 0.17 kg |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Material | durable polymer |
| Material Type | durable polymer |
| Model Number | 11182 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 11182 |
| UPC | 015561111829 |
| Unit Count | 1 Count |
| Voltage | 110 volts |
| Warranty Description | Warranty |
| Wattage | 8 watts |

## Product Details

- **Brand:** Marina
- **Color:** Black
- **Item Length:** 7.1 Inches
- **Material:** Plastic
- **Voltage:** 110 Volts

## Images

![Marina Betta Fish 8W Submersible Heater - Image 1](https://m.media-amazon.com/images/I/61jO9JRRZQS.jpg)

## Questions & Answers

**Q: Does this heater keep stable temperature? I've heard horror stories about preset heaters cooking the betta because temp went way too high .**
A: No, probably not in the sense you mean.  This is an eight watt "always on" type of heater, it has no thermostat.  The heater will continue to emit eight watts worth of heat whenever it is plugged in.  With very few exceptions all small "bowl" or "betta" heaters work this way, the only difference is the wattage.  They are available in 5 to 15 watts, you need to match tank size, ambient temperature, and other variables to heater wattage.  A thermometer and monitoring is essential, especially at first to determine what temperature a particular heater keeps a particular tank, and if room temperature rises so will the water temperature.  The term "preset" is not really applicable to these heaters, preset heaters have a thermostat that is permanently set at a certain temperature.   If a heater description uses the term preset without stating a specific temperature (usually 78°) then it is NOT a thermostatic heater- it is an always on type.  In too small of a tank or too warm a room these can overheat the water.  Bettas are very heat tolerant, which is why using these heaters is feasible, but care is still needed.  In anything under 3 gallons I think eight watts may be more than needed unless in a fairly cool room.

**Q: Is there any reason that I couldn't use this outside to keep a dog's water bowl from freezing?**
A: To answer the original question....it depends on how low the temp dips, but I would say no.  I've tried several different "devices" to keep water from freezing in cold MN winters, and most of them will fail if it gets much below 0.  I'd do a search for devices that are especially made for the purpose you have.  Some are quite inexpensive, and if your temps aren't too cold, will work fine, at least most of time.  The only thing that works well enough to be dependable for me are heated pails, and the pail has to be pretty big, 2 to 3 gal capacity (and kept full or near full of water) to keep the liquid contents from freezing when it gets really cold.  (These are the pails I have, except they're blue.  I've had them for more than 10 yrs, they still work and look like new, but I ONLY use them in the winter months, they're put away and not used at all over the summer.  I believe I pd about $30/ea at that time, so they've never been "cheap". https://www.amazon.com/Farm-Innovators-FB-80-Heated-Bucket/dp/B01I5JP69M/ref=sr_1_2?ie=UTF8&qid=1501103428&sr=8-2&keywords=heated+livestock+bucket.       I've also taken a 5 gallon pail, cut it in half, wrapped a heat tape around the lower part of the pail, taped it in place so the tape doesn't touch itself, put the upper part of the pail over that lower half, thereby covering the heat tape on the bottom half and making it inaccessible and preserving the handle on the upper half for carrying.  Then, tape the whole thing together using strong, outdoor weatherproof tape or some other means of keeping the contraption together......Viola, a 2 1/2 gallon DIY heated pail. Those worked quite well, kept the water from freezing but didn't warm the water and usually lasted as long as the heat tape did, several years if you only used them in the winter months.  Since you usually have a good supply of 5 gal pails around the farm and you only needed a short heat tape, they weren't expensive to make, especially important if you had need of several pails.  However, a decent heat tape isn't so inexpensive anymore nor do they seem to last as long.  That, plus getting older and lazier, are the reasons we now use store-bought, ready-made heated pails.)  These pails are not ideal, either, because they do such a good job, they actually warm the water, not hot, not even close, just lukewarm.  While one would think that's a good thing for the dogs....warm water on a cold day....they don't like the water to be warm. They much prefer their water to be cold but do drink it warm when that's the only option. Spoiled, fussy little buggers!

**Q: Would this be okay for a very small tank that only holds 10oz-12oz water?**
A: The heater is very small, but I'm not sure how big a tank that size looks. The heater is about 4 inches long and 2 inches wide.

**Q: It seems my heater in our 1/2 gallon tank is going up to 85 degrees. Is that too hot?**
A: Ideal water temp for bettas is between 78 and 80 degrees. Not 85...so ignore the people saying that's fine.

## Frequently Bought Together

- Marina Betta Fish 8W Submersible Heater - For Fish Tank Aquariums up to 1.5 US Gallons (5 L)
- 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
- Aqueon Aquarium Fish Tank Betta Bowl Plus Water Conditioner, 4 Ounce

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-11-02*