When to use?
When you need to control green algae and blanket weed in your pond naturally.
Algae Stopperz is an effective way to prevent algal growth, which is free from pesticides. Algae Stopperz is a barley straw-based pellet and is a completely natural product.
How to use?
For common frequently asked questions, click here.
Let us calculate your dosage for you!
To make the process of using our products even easier this handy dosage calculator tells you the amount you will need to put into your system. Please ensure you also read the instructions and warnings that are written on the bottle/pack label.
Note: This calculator does not take into account water displacement such as that caused by substrate, ornaments, water features and plants etc. Therefore, please adjust the calculated volume accordingly.
I know my system's measurements and want to:Calculate my volume
100g per 200 gallons (900 litres) of pond water
* Always follow the instructions on the label. This calculator is intended to be used only as a guide to how much product you need to buy to treat your system. It does not take account of displacement caused by gravel, rocks and ornaments etc and does not include the volume of any external filtration system. NT Laboratories Ltd. will not accept any responsibility for inaccuracies or misuse of this guide.