Algae Killer 250ml
Algae Killer controls most algae and green water in aquariums and ornamental ponds. It effectively kills growing algae and helps prevent its return.
Active ingredient: Diuron
Best used when algae first appears to stop further growth. For optimal results, combine with proper light management—limit both natural and artificial light exposure to reduce algae development.
Usage Instructions
- Shake well before use
- Add 15 drops per 18L of aquarium water
| Application | Amount |
|---|---|
| Water volume | 18L |
| Drop count | 15 drops |
FAQ
Can Algae Killer be used in saltwater aquariums?
Please contact customer service
How long does it take to see results after using Algae Killer?
Results may vary, but algae should start to reduce within a few days of application when used at the recommended rate.
Is Diuron safe for fish and aquatic life?
Diuron is formulated for use in freshwater environments and is generally safe for fish when used as directed. Always follow the recommended dosage.

Lucas Pullman –
Used it when my tank started showing green water. Followed the instructions and added 15 drops per 18L. The algae disappeared within 3 days. I now monitor light exposure more closely to prevent recurrence. Works well for my freshwater community tank.
Edward Ellison –
It helped reduce the green water in my pond. The algae didn’t come back immediately after treatment. I still adjust light hours, but it’s a solid solution for early algae outbreaks.
Lillian Black –
First time using algae control product. The instructions were clear and the product worked fast. No fish stress observed. Will use again if algae appears.