---
product_id: 324316935
title: "Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System"
brand: "datoo"
price: "€ 26.95"
currency: EUR
in_stock: true
reviews_count: 12
category: "Da Too"
url: https://www.desertcart.it/products/324316935-aquarium-hang-on-filter-small-fish-tank-hanging-filter-power
store_origin: IT
region: Italy
---

# 2.5W energy-saving pump 42 GAL/H (160L/H) flow rate ≤35db whisper-quiet operation Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System

**Brand:** datoo
**Price:** € 26.95
**Availability:** ✅ In Stock

## Summary

> 🐠 Elevate your nano aquarium game with whisper-quiet, powerhouse filtration!

## Quick Answers

- **What is this?** Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System by datoo
- **How much does it cost?** € 26.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/324316935-aquarium-hang-on-filter-small-fish-tank-hanging-filter-power)

## 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

- • **Power Meets Silence:** Ultra-efficient 2.5W pump delivers robust filtration with barely a whisper (≤35db) for peaceful aquatic vibes.
- • **Next-Level Filtration:** 100% research-grade activated carbon removes odors and impurities 1.5x better than standard filters for crystal-clear water.
- • **Tailored Flow Control:** Adjustable water flow knob lets you customize the current to suit delicate fish or plants, ensuring a stress-free habitat.
- • **Built to Last & Protect:** Durable ABS shell resists damage and corrosion, while bio-foam inlet safeguards tiny fish from suction hazards.
- • **Sleek Fit for Nano Tanks:** Ultra-thin design fits perfectly on 3-10 gallon tanks, making it the go-to filter for stylish, space-conscious aquarists.

## Overview

The DaToo Aquarium Hang-On Filter is a compact, energy-efficient filtration system designed for 3-10 gallon tanks. Featuring a powerful 2.5W pump with a 42 GAL/H flow rate and ultra-quiet operation (≤35db), it uses premium activated carbon and bio-foam for superior water purification and fish safety. Its adjustable flow and durable ABS construction make it ideal for maintaining a clean, oxygen-rich environment, backed by a one-year warranty.

## Description

The Best Aquarium Hang On Filter For Your NeedsSpecification:Voltage: 110~ 120V/60HzPower: 2.5WSize: 3.2*1.1*7.3InchCable Length: Flow: 42Gal/H (160L/H)Application: 3~10 gallon tankFeatures:- Powerful & Whisper-quiet Filter System- 100% Research-Grade Activated Carbon- Safe And Durable- Energy Saving - Adjustable Water Flow Rate- Longer Service Life- One Year WarrantyNOTICE:1. To reduce noise and avoid shake, please turn the knob at the bottom of the filter to adjust the distance between the filter and your fish tank.2. Before turning on the power, you need to add water to the filter, otherwise the filter will not work. Why Do I Select DaToo Aquarium Hang-On Filter?1. Powerful & Whisper-quiet Filter System: 2.5W powerful and energy-saving water pump, working sound ≤35db, can easily move water through the filter cartridge at a rate of 42Gal/H.2. 100% Research-grade Activated Carbon, can effectively remove odors, discoloration and impurities in water, and the filtering effect is 1.5 times that of other filters.3. Durable: High-strength ABS shell, without fear of any external force damage and chemical corrosion, longer service life.4. Safe: An extra bio-foam at the inlet of the filter, which not only enhances the filtering effect but also prevents small fish from being sucked, giving your lovely fish a safer environment. 5. Adjustable Water Flow Rate: Just slightly turn the adjustment knob, you can change the water flow rate as needed.6. Beneficial Oxygenation: Unique waterfall flow design, can create beneficial oxygenation and increase the oxygen content, which makes our aquarium inhabitants healthier and more energetic. 7. One Year Warranty, buy DaToo products with confidence.Select DaToo Products= Own A Private Aquarium Housekeeper.JUST DO IT, Let’t Go!!

Review: Simple, Effective, Customizable...Deal - Truth be told I was concerned about getting this HOB filter for my 2.5 gallon shrimp tank due to some critical points other reviewers made. So you know where I'm coming from, I do have a larger 30 Gal general tank and I've typically had bad experiences with HOB tanks that have the pump outside the of the tank. I tend to do better with either "self-priming" HOBs or Internal filters. However, for a 2.5 Gallon tank, internals take up too much space for the aquascaping I wanted to do and the only "self-prime" HOB I could think of that would fit was no longer produced (Marina S5). So I had no choice but to go with this HOB that had the motor on the outside. And it's actually really good. So my thoughts as to why I really like this one: 1. This filter is small and slim, but has ENOUGH space for me to customize the filter media (see pictures). 2. Super quiet...in fact my air pump is louder than it. The main feature that helps is that there is a rotating piece you can turn to put some space between the tank and the motor. That's the key there. I had rattles when it was up against the aquarium, but now that I turned that disk and created space, you don't hear anything but the trickle of water (when I turn off my air pump). 3. It comes with a suitably sized pre-filter that covers the intake pipe. My shrimp have safely climbed on to eat some of the food on it and combed off. It is coarse, but for a pre-filter I prefer that as it sufficiently catches large debris without greatly diminishing the water suction. I mean, I want most of the filtering to be done in the chamber anyways. 4. Easy to take apart and clean out sludge 5. The suction isn't too strong for my tank community. No one is fighting the current like they initially were when I tried an internal filter system. 6. It's size is easy to manage and work with while still being big enough to do a proper job. Things I learned to be aware of: 1. One other reviewer mentioned that this pump had sucked out water out of the tank and spilled it outside the tank. THIS CAN BE TRUE. It actually happened to me also, BUT I learned that there is an easy fix and it hasn't repeated that problem ever since. Simply put, I initially over stocked the chamber with media so it ended up displacing the water to much that it spilled out of the filter. I stripped it down (see the picture) and it works like a charm. No spillage...not even a little water dripping out of the top. And the biggest culprit was that I had a sponge that was way too dense in there. 2. When using an HOB this small (especially for a planted aquarium that uses soil), it will be necessary to clean the filter once a week. This also helps to prevent overflow. It's the nature of the beast. 3. The noise issue can be real as another reviewer noted...but just as I stated, the rotator disk they have at the bottom of the motor makes the rattles disappear. Again, the key is putting a gap between the tank and the motor component of the HOB. So all in all, I am pleased with this purchase and will be going for this filter again if I ever require one for another nano tank.
Review: ⭐⭐⭐⭐⭐ Perfect Filter for a Nano Tank – Whisper Quiet! - I was specifically looking for a very small filter that could fit on the back of my 1-gallon nano tank, and this filter checked all the boxes. It's incredibly compact, making it ideal for tight spaces without being an eyesore. What impressed me most is how quiet the motor is—it's practically silent. I actually had to put my ear right up to it just to make sure it was even running! That’s how discreet it is, which is a huge plus for a bedroom or office setup where noise can be a distraction. Another thoughtful feature is the extra piece included for the downpipe. My tank is fairly shallow, so being able to shorten the downstream length made installation smooth and hassle-free. Overall, I’m very impressed and happy with this purchase. It’s efficient, quiet, and clearly designed with small tanks in mind. Highly recommend for anyone running a nano setup!

## Features

- DaToo Aquarium Hang-On Filter: Owning a successful aquarium is the dream of every aquarium hobbyist. But what is the key to the success of the aquarium? The answer must be the perfect filter. DaToo Aquarium hang on filter has a powerful & whisper-quiet filter system, safe and durable, adjustable water flow rate, can easily create a clean, clear and stress-free water environment for your beloved fish. Select DaToo hang-on filter, let us immediately have a successful aquarium.
- Powerful & Whisper-Quiet Filter System: 2.5W water pump, powerful and energy saving, can easily move water through the filter cartridge at a rate of 42GAL/H (160L/H). Working sound ≤35db, giving you a whisper-quiet night. 100% research-grade activated carbon, can effectively remove odors, discoloration and impurities in water, and the filtering effect is 1.5 times that of other fish tank filters.
- Durable And Safe: Super-strength ABS shell, sturdy and durable, without fear of any external force damage and chemical corrosion, longer service life. DaToo adds an extra bio-foam at the inlet of the filter, which not only enhances the filtering effect but also prevents small fish from being sucked, giving your lovely fish a safer environment.
- Adjustable Water Flow Rate: Sometimes our aquarium inhabitants need a more gentle water flow, DaToo hang-on aquarium filter can help you achieve it easily. Just slightly turn the adjustment knob, you can change the water flow rate as needed. The unique waterfall flow design can create beneficial oxygenation and increase the oxygen content in the water, which makes our aquarium inhabitants healthier and more energetic.
- FIT & ONE YEAR WARRANTY: This is an ultra-thin design filter, perfect for 3~10 gallon tanks. One Year Warranty, buy DaToo products with confidence. JUST DO IT, Let’t Go!!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B091DQTJYC |
| ASIN  | B091DQTJYC |
| Best Sellers Rank | #14,678 in Pet Supplies ( See Top 100 in Pet Supplies ) #53 in Aquarium Filters |
| Brand Name | DaToo |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,043) |
| Date First Available | March 31, 2021 |
| Date First Available  | March 31, 2021 |
| Item Package Dimensions L x W x H | 4.88 x 4.76 x 3.11 inches |
| Item Weight | 8.4 ounces |
| Manufacturer | DaToo |
| Manufacturer  | DaToo |
| Package Dimensions  | 4.88 x 4.76 x 3.11 inches; 8.47 ounces |
| Size | DTXP-03B (3 to 10 gallons) |

## Images

![Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System - Image 1](https://m.media-amazon.com/images/I/51IyWi5TMDS.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you make the water level less intense? My tank is small**
A: You can adjust the water flow. It is a plastic turn non that adjusts how much water comes thru.

**Q: I asked when the replacement filters would be available and was told 2/5/23. I tried to order but it says it ships in 3 months?!!!**
A: Thank you for loving the DaToo product.
Don't worry, please be patient for a few more days, the replacement filters will soon be returned to stock. 
It won't take this long, Please just be patient for a few more days as the Amazon warehouse staff have not put the new stock on the shelves for sale yet. Once the new stock is placed on the shelves, you will receive it soon.

**Q: 7.3" is the intake all the way down? How many inches if the intake all the way up? Thank you**
A: Not sure if this answers the question but the intake or tube hangs a little more then halfway inside the tank.  Or about 5 inches from bottom. My tank is 3.3 gallons.

**Q: I have already purchased the filter and only now did i paid attention that it is for 60hz 110v. just to make sure: no way it will work at 50hz 220v?**
A: You need to buy an additional transformer to convert 110V to 220V.
(Note: Before use, please turn the knob at the bottom of the filter to adjust the distance between the filter and your fish tank, otherwise it will cause noise and shaking. Very important!!)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple, Effective, Customizable...Deal
*by H***S on November 5, 2022*

Truth be told I was concerned about getting this HOB filter for my 2.5 gallon shrimp tank due to some critical points other reviewers made. So you know where I'm coming from, I do have a larger 30 Gal general tank and I've typically had bad experiences with HOB tanks that have the pump outside the of the tank. I tend to do better with either "self-priming" HOBs or Internal filters. However, for a 2.5 Gallon tank, internals take up too much space for the aquascaping I wanted to do and the only "self-prime" HOB I could think of that would fit was no longer produced (Marina S5). So I had no choice but to go with this HOB that had the motor on the outside. And it's actually really good. So my thoughts as to why I really like this one: 1. This filter is small and slim, but has ENOUGH space for me to customize the filter media (see pictures). 2. Super quiet...in fact my air pump is louder than it. The main feature that helps is that there is a rotating piece you can turn to put some space between the tank and the motor. That's the key there. I had rattles when it was up against the aquarium, but now that I turned that disk and created space, you don't hear anything but the trickle of water (when I turn off my air pump). 3. It comes with a suitably sized pre-filter that covers the intake pipe. My shrimp have safely climbed on to eat some of the food on it and combed off. It is coarse, but for a pre-filter I prefer that as it sufficiently catches large debris without greatly diminishing the water suction. I mean, I want most of the filtering to be done in the chamber anyways. 4. Easy to take apart and clean out sludge 5. The suction isn't too strong for my tank community. No one is fighting the current like they initially were when I tried an internal filter system. 6. It's size is easy to manage and work with while still being big enough to do a proper job. Things I learned to be aware of: 1. One other reviewer mentioned that this pump had sucked out water out of the tank and spilled it outside the tank. THIS CAN BE TRUE. It actually happened to me also, BUT I learned that there is an easy fix and it hasn't repeated that problem ever since. Simply put, I initially over stocked the chamber with media so it ended up displacing the water to much that it spilled out of the filter. I stripped it down (see the picture) and it works like a charm. No spillage...not even a little water dripping out of the top. And the biggest culprit was that I had a sponge that was way too dense in there. 2. When using an HOB this small (especially for a planted aquarium that uses soil), it will be necessary to clean the filter once a week. This also helps to prevent overflow. It's the nature of the beast. 3. The noise issue can be real as another reviewer noted...but just as I stated, the rotator disk they have at the bottom of the motor makes the rattles disappear. Again, the key is putting a gap between the tank and the motor component of the HOB. So all in all, I am pleased with this purchase and will be going for this filter again if I ever require one for another nano tank.

### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ Perfect Filter for a Nano Tank – Whisper Quiet!
*by A***R on August 6, 2025*

I was specifically looking for a very small filter that could fit on the back of my 1-gallon nano tank, and this filter checked all the boxes. It's incredibly compact, making it ideal for tight spaces without being an eyesore. What impressed me most is how quiet the motor is—it's practically silent. I actually had to put my ear right up to it just to make sure it was even running! That’s how discreet it is, which is a huge plus for a bedroom or office setup where noise can be a distraction. Another thoughtful feature is the extra piece included for the downpipe. My tank is fairly shallow, so being able to shorten the downstream length made installation smooth and hassle-free. Overall, I’m very impressed and happy with this purchase. It’s efficient, quiet, and clearly designed with small tanks in mind. Highly recommend for anyone running a nano setup!

### ⭐⭐⭐⭐ Motor hums and vibrates, otherwise amazing.
*by D***E on July 6, 2025*

Just got it but it primed easily and seems to work well. Love that it has a coarse prefilter and the media seems ok for this size of tank. We will update if we have any problems. Use foam to prop it up since motor can be a bit hummy. But my betta is happy with the flow in the 5.5gallon.

## Frequently Bought Together

- DaToo Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System
- DaToo Aquarium Filter Cartridge Replacement Fish Tank Filter Cartridge for DTXP-03B

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-21*