Oase AquaActiv AlGo Universal Total Algae Control 500ml
The ABC of algae control.
AlGo Universal works effectively against the most frequent algae species such as string algae, slime algae, and suspended algae without causing any lasting damage to the pond ecosystem. The product specifically targets the algae organism and metabolism, causing the algae to die off gradually.
Dosage
| Instruction | Details |
|---|---|
| Pre-treatment | Remove as much algae as possible prior to use to avoid unnecessary oxygen deprivation. Ensure an adequate supply of oxygen. |
| Shaking | Shake the bottle vigorously before use. |
| Application | Using the measuring cup, add 50ml to 1000 litres of pond water and distribute evenly. |
| Follow-up | Additional dosage of half the quantity is recommended after approximately 4 weeks in cases of strong algae growth. |
FAQ
How does AlGo Universal work to control algae?
AlGo Universal targets the algae organism and its metabolism, causing the algae to die off gradually without harming the pond ecosystem.
What types of algae does AlGo Universal effectively control?
It effectively controls common algae species including string algae, slime algae, and suspended algae.
Is there a recommended follow-up dosage?
Yes, an additional dosage of half the original quantity is recommended after approximately 4 weeks if algae growth is strong.

Grace Wilson –
Used AlGo Universal in my koi pond with heavy string algae. After one application, the algae started to fade over the next two weeks. No harm to fish or plants. The instructions were clear and easy to follow. Good product for regular maintenance.
Eric May –
Felt effective after a few weeks of use. Algae levels dropped noticeably. I added the recommended follow-up dose after four weeks and saw continued improvement. Works well without disrupting the pond balance.
Jessica Henderson –
My pond had persistent slime algae that other products didn’t solve. AlGo Universal worked well and didn’t cause any fish stress. The dosage is simple and the product mixes easily into the water.