---
product_id: 397936348
title: "NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons"
brand: "nicrew"
price: "R34"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/397936348-nicrew-mini-aquarium-betta-heater-15-25-35-50-75w
store_origin: ZA
region: South Africa
---

# LED heating indicator ±2°F accuracy 77°F preset temp NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons

**Brand:** nicrew
**Price:** R34
**Availability:** ✅ In Stock

## Summary

> 🐠 Dive into Comfort with NICREW!

## Quick Answers

- **What is this?** NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons by nicrew
- **How much does it cost?** R34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/397936348-nicrew-mini-aquarium-betta-heater-15-25-35-50-75w)

## Best For

- nicrew enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Overheat protection ensures a safe environment.
- • **Stay Tropical:** Perfectly maintains 77°F for your aquatic friends.
- • **User-Friendly:** LED indicator light shows when heating is active.
- • **Compact & Versatile:** Easily fits in any aquarium setup, vertical or horizontal.
- • **Ideal for Small Tanks:** Designed for aquariums up to 2.5 gallons.

## Overview

The NICREW Mini Aquarium Betta Heater is a 15-watt submersible heater designed for small aquariums up to 2.5 gallons. It features a preset temperature of 77°F, ±2°F accuracy, overheat protection, and a compact design with built-in suction cups for easy placement.

## Description

Full description not available

## Features

- Preset temperature has been set to 77°F, appropriate for most tropical fish, shrimp and aquatic plants requiring stable conditions
- With accuracy of ±2°F and overheat protection, protect your tank from extreme temperature
- LED indicator light will turn to red when the heater is actively heating
- With compact design and built-in suction cups, the heater can be easily placed vertically or horizontally in aquariums completely
- This 15-watt submersible heater works for small aquariums, up to 2.5 gallon, to provide the ideal water temperature

## Images

![NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons - Image 1](https://m.media-amazon.com/images/I/51XPwZvWXEL.jpg)
![NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons - Image 2](https://m.media-amazon.com/images/I/71LMf5usj8L.jpg)
![NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons - Image 3](https://m.media-amazon.com/images/I/711swjPy56L.jpg)
![NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons - Image 4](https://m.media-amazon.com/images/I/61J-+bkhVlL.jpg)
![NICREW Mini Aquarium Betta Heater, 15/25/35/50/75W Fish Tank Heater, 15 Watts, 2.5 Gallons - Image 5](https://m.media-amazon.com/images/I/71UAUikXQsL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Used in Aerogarden Harvest
*by M***T on February 15, 2025*

I use these to warm the water in my Aerogarden to speed up and improve germination success. Worked well. Seeds 98% germination rate and seeds sprouted 1 week faster. That is important here as the growing season is so short that any jump start is crucial for a bountiful harvest.

### ⭐⭐⭐⭐⭐ Very nice mini heater
*by J***L on April 2, 2023*

CLIFF NOTE VERSION: Both heater work very well. The Nicrew is smaller, less obtrusive, but not adjustable. The Hygger is a tad larger, is adjustable, and has a large red LED readout of the tank temperature.LONG VERSION: I have purchased mini-heaters in the past and they either didn't heat or fried the water. I long ago learned to do the bucket test. I purchased the Nicrew Mini (15 watt) and the Hygger (15 watt). The Nicrew is smaller with a preset stated as 76 degrees F. The Hyger is adjustable with a large LED readout. Both were placed in a 3 gallon bucket of 70 degree water for one hour before plugging in. This is a manufacturer suggestion, and, IMHO, failing to do this is bad for the heater. The room was 70 degrees. I plugged them in and set the Hygger. An hour later both buckets of water were at 74-75. That temp held for 24 hours, even though the room temp dropped to 65 at night. I'm now using the Nicrew 15 watt in a 2.5 gallon tank and I’ve very happy with it. The Nicrew holds rock steady at 74. I'm keeping both heaters. I'll use the Hygger in the winter when the room temp is much colder and I may need to use the adjustable feature to compensate for the room/tank temps. I used a scientific thermometer for my readings. The Nicrew is preset at 76, and my reading is 74. Since the temperature remains steady, I feel that 1 to 2 degrees difference is acceptable.

### ⭐⭐⭐⭐ Small 15 W Heater For Betta Tank
*by G***D on February 7, 2024*

I've had this heater in service for a while now. It's appearance is fairly non-intrusive although it shows up a bit larger than I thought it would in a 2.5 gallon aquarium. This heater has a red light when it's on and a green light when it's off. I would say this heater doesn't use a lot of power because it doesn't come on very often. It will keep the aquarium at around 75° to 76°F but that's about as much as it will do because it simply doesn't cycle on often enough to heat the water any warmer than that. That's okay but I would have preferred 78°F since Bettas enjoy their heaters. And the Betta does enjoy hovering just above this heater. This is an okay heater for a 2.5 gallon aquarium but I would not recommend it for any larger size tank. This little heater does heat but it doesn't come on quite often enough.

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**Shop now:** [https://www.desertcart.co.za/products/397936348-nicrew-mini-aquarium-betta-heater-15-25-35-50-75w](https://www.desertcart.co.za/products/397936348-nicrew-mini-aquarium-betta-heater-15-25-35-50-75w)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-01-22*