Green Killing Machine
The Green Killing Machine (GKM) makes fighting green water easier!
It is an internal UV filter with a power head that you can simply drop into your tank for full UV protection.
The design allows it to be hidden behind ornaments or plants in your aquarium, eliminating potential leaks around your tank.
UV Filters help eliminate green water, cloudiness and reduce water changes.
Additional Features
| Feature | Description |
|---|---|
| Water pump included | Integrated pump for efficient water circulation |
| Simple installation | Easy setup with no tools required |
| Submersible assembly | Designed to be fully submerged in the tank |
| No external pipes or plumbing | Internal system eliminates the need for external connections |
| Suction cup mounting | Securely attaches to tank surface without hardware |
| LED signals for UV bulb replacement | Indicates when UV bulb needs to be replaced |
FAQ
How does the Green Killing Machine work to remove green water?
The Green Killing Machine uses UV light to kill algae and other microorganisms that cause green water and cloudiness in the aquarium.
Can I install the Green Killing Machine without drilling or using hardware?
Yes, it uses a suction cup for mounting and does not require any drilling or hardware installation.
Is the UV bulb replaceable, and how do I know when it needs replacing?
Yes, the UV bulb is replaceable. The device includes LED signals that indicate when the bulb needs to be replaced.




Katherine MacLeod –
Installed the Green Killing Machine in my 55-gallon tank last week. The green water issue has improved noticeably within a few days. It’s easy to place behind some plants and doesn’t look bulky. The LED light shows when the UV bulb needs changing, which is helpful. No plumbing or tools needed. Works well with my existing filter setup.
Audrey Forsyth –
Great product for reducing algae. The suction cup holds firmly and the unit stays hidden. I didn’t have to change anything in my tank layout. The water clarity has improved significantly. Only downside is the UV bulb needs replacement every 6-9 months, which is a bit of a cost over time.
David Jones –
After months of struggling with green water, this unit solved the problem. It’s compact, easy to install, and works quietly. I placed it behind a rock formation and it’s completely invisible. The LED indicator helps me keep track of bulb life. Very satisfied with the performance.