---
product_id: 48418611
title: "Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre"
brand: "fish r fun"
price: "€ 203.01"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/48418611-fish-r-fun-green-killing-machine-internal-uv-sterilizer-power
store_origin: HR
region: Croatia
---

# 400L Capacity 24W Power Easy Install Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre

**Brand:** fish r fun
**Price:** € 203.01
**Availability:** ✅ In Stock

## Summary

> 🌟 Dive into Clarity with the Green Killing Machine!

## Quick Answers

- **What is this?** Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre by fish r fun
- **How much does it cost?** € 203.01 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48418611-fish-r-fun-green-killing-machine-internal-uv-sterilizer-power)

## Best For

- fish r fun enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Setup:** Experience a hassle-free 1-2-3 installation process.
- • **No Plumbing Needed:** Say goodbye to external pipes and plumbing—simplicity at its best!
- • **Submersible Design:** Enjoy a sleek, submersible assembly with an included water pump.
- • **Suction Cup Mounting:** Mount it anywhere with ease—no hardware required!
- • **Smart Maintenance Alerts:** Stay informed with LED signals for UV bulb replacement.

## Overview

The Fish 'R' Fun Green Killing Machine Internal UV Sterilizer is a powerful 24W unit designed for aquariums up to 400 liters. With a simple installation process, submersible design, and no need for external plumbing, it ensures crystal-clear water while providing smart maintenance alerts for optimal performance.

## Description

Fish R Fun Green Killing Machine Internal UV Sterilizer with Power Head sealed sterilization lamp, filter pump, a control box with LED indicator, safety approved transformer, kills algae, pathogens, and harmful bacteria, perfect for both tropical and marine fish, for up to 450L/hr. Makes fighting green water easier. The UV radiation is effective in controlling bacteria, yeast, moulds and other pathogens, in turn controlling algae growth. Water flows in direct contact with the UV lamp, intensifying its function of fighting green water.

Review: Comparing 24W with 9W after 3 years of experience. - I hope this is useful information for those who are contemplating the purchase of this item. I have owned the smaller 9W version of this 24W uv sterilizer and it was also very good. I never needed to replace the lamp and it did its job for 3 years. The flow rate was very gentle however and not sufficent to circulate my 165 litre (36 uk gallon) aquarium so I used a seperate small powerhead to provide greater flow. The 9W version broke after 3 years as the cable entering the pump unit broke where it was connected because the cable bends repeatedly at this point. Greater care could avoid this happening but I did not realise. When it broke the green water returned again shortly afterwards showing that it had been working effectively even with a 3 year old 9W uv lamp. This larger model cleared the green water within 3 days and a further improvement in clarity resulted after a week of use. The flow with the larger 24W model is much greater and perfect for a gentle flow in my 165 litre aquarium. It does have a larger body and so there is more to accomodate within the aquarium but this is not a problem for me as it fits behind the same rock as the smaller unit. Interestingly, the point where the cable enters the pump unit has a reinforced connection which bodes well for longevity. Also worth noting is that the transformer is very heavy and cannot be left hanging as I did with the smaller model. Luckily the cabling is long enough for me to fit the transformer within the cupboard underneath my aquarium so there is again no issue there. Importantly, I recieved good service from Rocket Aquatics and the sterilizer was a brand new one in new packaging and arrived swiftly. On 01 Jan 2016 I had bought a 700IF from All Pond Solutions which is a 700 l/h internal filter with 9w UV steriliser but this was supplied in opened and damaged packaging and was not working. It was sent back for a refund which after much prompting eventually arrived on 10 Mar. I have found that when the water flow on this 24W reduces I can back-flush it by disconnecting the pump and reversing the flow while holding the pump onto the light unit. This seems quite easy to do. Also, I needed a cable tie to secure the unit to a rock in my aquarium as I found the sucker ineffective in my application.
Review: Amazing results - a game changer! - I hardly ever write reviews but feel that this product warrants one. After weeks of struggling with my 330litre heavily planted, freshwater tank with bacterial and algal blooms I was at my wits end. Water parameters were all good and I’d tried various filter media, bacterial boosters, clarifiers and water change regimes to no avail. Moving the tank out of any light wasn’t an option so I’d got to last ditch attempt and thought this was worth a go. I thought the price was low and the concept too simple, why didn’t everyone have these as standard if they’re so good?? The answer is they should!! Within 3 days my tank is crystal clear and I can see the colours of the fish clearly and it no longer leaves me frustrated looking at cloudy water, it’s really made me love the tank again. The unit itself is smaller than I thought and is virtually noiseless with a simple light to show when it’s working. Once my tank has stayed clear for a week I’ll be switching this to a timer and running 8 hours per day to preserve lamp life with full running at the first sign of a problem. This is a great piece of kit - don’t be put off by the reasonable price, the name or the fact that many aquatics shops will say don’t bother or direct you to a much more expensive unit. The proof is in the results which are crystal clear. If you’re considering buying this - do it!

## Features

- Simple 1-2-3 installation
- Submersible assembly, water pump included
- No external pipes or plumbing
- Suction cup mounting - no hardware required
- LED signals need for UV bulb replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 40 x 22 x 9 cm; 1.28 kg |
| Batteries required | No |

## Images

![Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre - Image 1](https://m.media-amazon.com/images/I/51XaDZs3RSL.jpg)

## Questions & Answers

**Q: Can this be positioned on its side as it will be in my sump**
A: I suppose it can, the powerhead plugs into the bottom uv section and this can be rotated 90 degrees.

**Q: Could this be mounted externally**
A: I don't see how it could be positioned outside the tank as the pump and water intake nee to be in water.

**Q: How many hours a day do you folks run this in your tank. I have 240l planted community tank.**
A: Dont think it helps to be honest ... i cleaned my  tank out and put my lights on a timer no more that 5 hours a day...my algae problem and green water problem was solved job done

**Q: How do I get replacement UV Bulb for the UV steriliser**
A: There area number of suppliers on the Internet. They are easy to replace once you have bought a new tube. I think Amazon show some supplier which can supply these.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comparing 24W with 9W after 3 years of experience.
*by R***K on 23 January 2016*

I hope this is useful information for those who are contemplating the purchase of this item. I have owned the smaller 9W version of this 24W uv sterilizer and it was also very good. I never needed to replace the lamp and it did its job for 3 years. The flow rate was very gentle however and not sufficent to circulate my 165 litre (36 uk gallon) aquarium so I used a seperate small powerhead to provide greater flow. The 9W version broke after 3 years as the cable entering the pump unit broke where it was connected because the cable bends repeatedly at this point. Greater care could avoid this happening but I did not realise. When it broke the green water returned again shortly afterwards showing that it had been working effectively even with a 3 year old 9W uv lamp. This larger model cleared the green water within 3 days and a further improvement in clarity resulted after a week of use. The flow with the larger 24W model is much greater and perfect for a gentle flow in my 165 litre aquarium. It does have a larger body and so there is more to accomodate within the aquarium but this is not a problem for me as it fits behind the same rock as the smaller unit. Interestingly, the point where the cable enters the pump unit has a reinforced connection which bodes well for longevity. Also worth noting is that the transformer is very heavy and cannot be left hanging as I did with the smaller model. Luckily the cabling is long enough for me to fit the transformer within the cupboard underneath my aquarium so there is again no issue there. Importantly, I recieved good service from Rocket Aquatics and the sterilizer was a brand new one in new packaging and arrived swiftly. On 01 Jan 2016 I had bought a 700IF from All Pond Solutions which is a 700 l/h internal filter with 9w UV steriliser but this was supplied in opened and damaged packaging and was not working. It was sent back for a refund which after much prompting eventually arrived on 10 Mar. I have found that when the water flow on this 24W reduces I can back-flush it by disconnecting the pump and reversing the flow while holding the pump onto the light unit. This seems quite easy to do. Also, I needed a cable tie to secure the unit to a rock in my aquarium as I found the sucker ineffective in my application.

### ⭐⭐⭐⭐⭐ Amazing results - a game changer!
*by F***B on 1 April 2019*

I hardly ever write reviews but feel that this product warrants one. After weeks of struggling with my 330litre heavily planted, freshwater tank with bacterial and algal blooms I was at my wits end. Water parameters were all good and I’d tried various filter media, bacterial boosters, clarifiers and water change regimes to no avail. Moving the tank out of any light wasn’t an option so I’d got to last ditch attempt and thought this was worth a go. I thought the price was low and the concept too simple, why didn’t everyone have these as standard if they’re so good?? The answer is they should!! Within 3 days my tank is crystal clear and I can see the colours of the fish clearly and it no longer leaves me frustrated looking at cloudy water, it’s really made me love the tank again. The unit itself is smaller than I thought and is virtually noiseless with a simple light to show when it’s working. Once my tank has stayed clear for a week I’ll be switching this to a timer and running 8 hours per day to preserve lamp life with full running at the first sign of a problem. This is a great piece of kit - don’t be put off by the reasonable price, the name or the fact that many aquatics shops will say don’t bother or direct you to a much more expensive unit. The proof is in the results which are crystal clear. If you’re considering buying this - do it!

### ⭐ Update: Would not recommend. It's a fire hazard.
*by T***G on 16 August 2019*

Update: It seems the electronic quality of this unit isn't up to much. This power unit has burned out. Luckily for us not catching fire or causing any damage. We noticed the burning smell and tracked it down to the UV filter. I would definitely not recmmend this product. It's a potential fire hazard. Had a thick 'pea soup' aquarium for 2 weeks and tried everything, including chemicals, daily water changes, no light and feeding to clear, but nothing worked. I bought this light with little expectation, but it started working within hours on a 350 litre aquarium. 48 hours my water is the clearest it has ever been. Highly recommend as an investment.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-27*