---
product_id: 91012015
title: "Submersible Aquarium Heater,100W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater"
price: "₨954"
currency: SCR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sc/products/91012015-submersible-aquarium-heater-100w-adjustable-fish-tahk-heater-with-2
store_origin: SC
region: Seychelles
---

# 100W power for 10-20 gal tanks Precise temp control 68-89°F ±1° 2mm thick quartz explosion-proof glass Submersible Aquarium Heater,100W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater

**Price:** ₨954
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your tank cozy and your fish chill — precision heating that’s built to impress!

## Quick Answers

- **What is this?** Submersible Aquarium Heater,100W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater
- **How much does it cost?** ₨954 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/91012015-submersible-aquarium-heater-100w-adjustable-fish-tahk-heater-with-2)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last & Safe:** Explosion-proof quartz glass and automatic shut-off protect your tank and fish, giving you peace of mind 24/7.
- • **Fish-Approved Comfort:** Durable, fish-safe plastic guard doubles as a cozy resting spot—your betta’s new favorite hangout that’s as functional as it is comfy.
- • **Universal Compatibility:** Perfectly designed for both freshwater and marine saltwater tanks from 10 to 20 gallons—versatility that fits your lifestyle.
- • **Tailored Thermal Comfort:** Adjustable dial lets you fine-tune your aquatic climate with 1-degree precision, ensuring your fish thrive in their ideal environment.
- • **Effortless Installation & Monitoring:** Includes 2 suction cups for secure placement plus a free thermometer to keep your tank’s temperature in check without guesswork.

## Overview

The Orlushy 100W Submersible Aquarium Heater offers precise temperature control from 68 to 89°F with a sensitive thermostat and automatic shut-off for safety. Its durable 2mm thick quartz glass housing is explosion-proof and suitable for both freshwater and saltwater tanks between 10 and 20 gallons. Easy to install with included suction cups and a free thermometer, it’s designed for long-lasting performance and even doubles as a cozy resting spot for bettas, making it a smart, reliable choice for any aquarium enthusiast.

## Description

desertcart.com: Orlushy Submersible Aquarium Heater,100W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater : Pet Supplies

Review: Very tough and warm betta bed - Its a really good lil heater i bought it about 3 months ago and my betta loves sleeping on it for some reason. Also dw it wont burn your fish to a crisp bc like i said my betta likes sleeping on it instead of the plant leaves so if you have a betta with no place to sleep i suggest you put the heater as close to the surface as possible and make sure its still completely submerged like the instructions suggest and maybe your betta might like sleeping on it. Also when my idiot brother didnt take care of his betta about half the water evaporated outta the tank and he never topped it off so the heater was sticking out like a sore thumb so when i took his betta (bc hes so irresponsible) i actualy saw the heater was STILL WORKING! even tho it wasnt even in the water and it was still plugged in the wall all that time, it never even burned out or over heated. Pretty good lifespan considering it was halfway out of the water for about a month or 2 idk bc my idiot brother neglected the poor betta for who knows how long (Dw guys the betta is in safe hands and dw they arent sharing the same tank or even near each others tanks) I rate 5 stars for how long it lasted, its pretty cheap price and also that my betta thinks its very comfortable to sleep on. My betta loved it and even when i took my brothers betta i put together a new tank and let it cycle so while it did that i had to put his betta in a tupperware with that heater and i actualy caught his betta sleeping on the heater to so this is essentially a heater and a bed for bettas! ill put an image to show you my brothers previous tank with the heater in it to show you it was still working even tho it wasnt completely submerged for about a month or 2. Even if it breaks ill most likely buy another one from this seller bc of how cheap and hardy they are, it already lasted a couple months out of water so i doubt it will break anytime soon and my heater is already 4 months old and doing great so id say these are pretty good quality heater for the price they are selling for and also very comfortable for both of the bettas to sleep on bc of the plastic guard that wont cook them but rather keep them warm at night!
Review: Very nice heater! - This heater is packaged nicely and works great so far. Seems to be accurate and comes with a stick on thermometer that is accurate and a hand held LCD thermometer. Pleasantly suprised with the quality at this price, hopefully it lasts me a while.

## Features

- ★100W aquarium heater is suitable for 10 to 20 gallons aquariums,Length - 9",voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.
- ★It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small intervals
- ★Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.
- ★Precise temperature dial from 68 to 89°F allows for complete control of aquatic climate within a 1-degree difference.
- ★Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.3 out of 5 stars 24,735 Reviews |

## Images

![Submersible Aquarium Heater,100W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater - Image 1](https://m.media-amazon.com/images/I/51i6OZ+mJML.jpg)

## Available Options

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

## Questions & Answers

**Q: I have a hermit cab tank, can i used this for a tank that is not submerged in water?**
A: I would NOT. It is meant to be in water, and I think it would get too hot without water to disperse the heat.

**Q: Could you use this to take the chill off in a atrium?**
A: no, this must be completely under water and 150 watts is not going to have much impact on such a space.....better use 150 watt light bulb or more.

**Q: The included digital Thermometer did not include a battery. Does anyone know what # watch battery it requires?**
A: Mine did come with the battery, and "works". How accurate it is remains to be seen. I just received and installed the thermometer and heater tonight, so I'll check in the morning and compare to another thermometer.

**Q: Digital Thermometer supplied with this heater is almost 3°F off. Is there a way to calibrate it?**
A: Mine is 10 degrees off. I can not express how unhappy I am with this product. The dial on the top of the heater is nowhere near what the water temp is, and the digital thermometer they send with it is horrible.
Two other sources say they are off by 10 degrees. 
Never again....

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very tough and warm betta bed
*by A***A on October 16, 2025*

Its a really good lil heater i bought it about 3 months ago and my betta loves sleeping on it for some reason. Also dw it wont burn your fish to a crisp bc like i said my betta likes sleeping on it instead of the plant leaves so if you have a betta with no place to sleep i suggest you put the heater as close to the surface as possible and make sure its still completely submerged like the instructions suggest and maybe your betta might like sleeping on it. Also when my idiot brother didnt take care of his betta about half the water evaporated outta the tank and he never topped it off so the heater was sticking out like a sore thumb so when i took his betta (bc hes so irresponsible) i actualy saw the heater was STILL WORKING! even tho it wasnt even in the water and it was still plugged in the wall all that time, it never even burned out or over heated. Pretty good lifespan considering it was halfway out of the water for about a month or 2 idk bc my idiot brother neglected the poor betta for who knows how long (Dw guys the betta is in safe hands and dw they arent sharing the same tank or even near each others tanks) I rate 5 stars for how long it lasted, its pretty cheap price and also that my betta thinks its very comfortable to sleep on. My betta loved it and even when i took my brothers betta i put together a new tank and let it cycle so while it did that i had to put his betta in a tupperware with that heater and i actualy caught his betta sleeping on the heater to so this is essentially a heater and a bed for bettas! ill put an image to show you my brothers previous tank with the heater in it to show you it was still working even tho it wasnt completely submerged for about a month or 2. Even if it breaks ill most likely buy another one from this seller bc of how cheap and hardy they are, it already lasted a couple months out of water so i doubt it will break anytime soon and my heater is already 4 months old and doing great so id say these are pretty good quality heater for the price they are selling for and also very comfortable for both of the bettas to sleep on bc of the plastic guard that wont cook them but rather keep them warm at night!

### ⭐⭐⭐⭐⭐ Very nice heater!
*by M***. on January 30, 2026*

This heater is packaged nicely and works great so far. Seems to be accurate and comes with a stick on thermometer that is accurate and a hand held LCD thermometer. Pleasantly suprised with the quality at this price, hopefully it lasts me a while.

### ⭐⭐⭐⭐⭐ Reliable Heater That Keeps Perfect Temperature — Even in a Cold Garage
*by M***W on January 5, 2026*

I bought this aquatic heater for my red-eared slider turtle, and it has been working great. It keeps the water at a perfect, consistent temperature, which is extremely important for turtle health—especially since my turtle is currently housed in a cold garage. Despite the colder environment, the heater maintains the set temperature without any fluctuations. It feels well-built and durable, which is important in a turtle tank where equipment can get bumped around. Installation was easy, and once set, it requires very little maintenance. Overall, this heater has been reliable, efficient, and gives me peace of mind knowing my turtle stays warm even in a colder space. I’d definitely recommend it to anyone keeping a red-eared slider or other aquatic turtle.

## Frequently Bought Together

- Orlushy Submersible Aquarium Heater,100W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater
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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-14*