--- 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: "€ 161.20" currency: EUR in_stock: true reviews_count: 6 category: "Fish R Fun" url: https://www.desertcart.gr/products/48418611-fish-r-fun-green-killing-machine-internal-uv-sterilizer-power store_origin: GR region: Greece --- # 24W powerful UV sterilizer 400L/hr optimized water flow Tool-free suction cup mount Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre **Brand:** fish r fun **Price:** € 161.20 **Availability:** ✅ In Stock ## Summary > 💧 Clear water, zero hassle — your aquarium’s green water nemesis! ## 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?** € 161.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 - • **Integrated Power Head:** Gentle yet effective 450L/hr flow rate perfect for tropical & marine tanks - • **Effortless Installation:** Simple 1-2-3 setup with no plumbing or external pipes needed - • **Smart Maintenance Alerts:** LED indicator signals when UV bulb replacement is needed—never miss a beat - • **Durable & Quiet Operation:** Reinforced cable entry and whisper-quiet pump for long-lasting, hassle-free use - • **Powerful Water Clarification:** 24W UV lamp kills algae & pathogens for crystal-clear water up to 400L ## Overview The Fish 'R' Fun Green Killing Machine is a 24W internal UV sterilizer with an integrated power head, designed to eliminate algae, bacteria, and pathogens in aquariums up to 400 liters. Featuring a submersible assembly with suction cup mounting, it requires no external plumbing and offers a gentle 450L/hr flow rate. Its LED indicator ensures timely UV bulb replacement, while reinforced construction guarantees durability and quiet operation, making it ideal for both tropical and marine fish tanks. ## 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: Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre - i have used these for years now and they really do work - i would recommend to always get the larger one not the smaller one you will get better coverage they flow can be turned down with the little twist knob at the side but you need to be very careful you dont snap it or you will need to by another one you can buy replacement bulbs - it keeps the water crystal clear once it gets working and does help with the cleanliness of the water quality and it is very quiet - the durability is excellent please not it is very big so might not be suitable for the shawoller tanks ## 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 | |---------------|-------| | ASIN | B000S5L4WA | | Batteries required | No | | Best Sellers Rank | 99,229 in Pet Supplies ( See Top 100 in Pet Supplies ) 257 in Aquariums & Fish Bowls 17,129 in Laundry & Cleaning | | Customer Reviews | 4.0 4.0 out of 5 stars (504) | | Date First Available | 17 Feb. 2010 | | Item model number | FRF-UV24W | | Package Dimensions | 40 x 22 x 9 cm; 1.28 kg | ## 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. ### ⭐⭐⭐⭐⭐ Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre *by D***T on 16 February 2026* i have used these for years now and they really do work - i would recommend to always get the larger one not the smaller one you will get better coverage they flow can be turned down with the little twist knob at the side but you need to be very careful you dont snap it or you will need to by another one you can buy replacement bulbs - it keeps the water crystal clear once it gets working and does help with the cleanliness of the water quality and it is very quiet - the durability is excellent please not it is very big so might not be suitable for the shawoller tanks ### ⭐ Works great until it doesn't *by G***N on 19 August 2025* On the positive, while it works this product is great - made a HUGE difference to my tank.. until it stopped working. Wouldn't turn on, UV & LEDs just dead - returned to the seller to fix, they checked it, said it was working fine and returned it. All very promptly. It's now stopped working again and my tank is back to urgh. Not sure if I have a one off faulty unit but it does appear like others have the same issue. ## Frequently Bought Together - Fish 'R' Fun Green Killing Machine Internal UV Sterilizer with Power Head, 24W Upto 400 Litre - Tetra AquaSafe, to Turn Tap Water into Safe and Healthy Water for Fish and Plants, 5 Litre - Evolution Aqua Pure Aquarium - for a Crystal Clear Healthy Aquarium (50 balls) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/48418611-fish-r-fun-green-killing-machine-internal-uv-sterilizer-power](https://www.desertcart.gr/products/48418611-fish-r-fun-green-killing-machine-internal-uv-sterilizer-power) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-05-27*