Algae Killer 100ml
Algae Killer controls most algae and green water in aquariums and ornamental ponds. Effective against growing algae and helps prevent its return.
Active ingredient: Diuron
Best used when algae first appears. For optimal results, combine with proper light management—limit sunlight and artificial light exposure to reduce algae growth.
Usage Instructions
- Shake well before use
- Add 15 drops per 18L of aquarium water
| Application | Amount |
|---|---|
| Freshwater aquariums | 15 drops per 18L |
| Ornamental ponds | 15 drops per 18L |
FAQ
Can Algae Killer be used in saltwater aquariums?
Please contact customer service
How often should I apply Algae Killer?
Use when algae first appears. Reapplication may be needed if algae returns after treatment.
Is Diuron safe for fish?
Diuron is safe for use in freshwater aquariums and ornamental ponds when used as directed. Always follow the recommended dosage.

Neil Burgess –
Used it when my tank started showing green water. Added 15 drops per 18L as instructed. The algae faded within a few days. I now monitor light exposure more closely to prevent recurrence. Works well for initial algae outbreaks.
John Wilson –
Effective against surface algae. The water cleared up quickly. I noticed it didn’t eliminate deep-rooted algae, so I combined it with better lighting control. Slight improvement over other products I’ve tried.
William Marshall –
Great solution for sudden green water blooms. Easy to use and results were visible within a week. I’ve used it twice now without any fish issues. Recommended for early algae treatment.