Independent Store Brand Pond Block – Green (500-1500Ltr)
Independent Store Brand Pond and Aquarium Clear Blocks will clear green water and bacterial algae in approximately 7 days and depending on water hardness will last 3 to 4 weeks.
The majority of aquarium algae are actually bacteria, as a result this product is not herbicidal but anti-bacterial.
This block also assists in the prevention of ammonia spikes and will stabilize aquarium pH by resisting acidifying pH reduction.
Product Specifications
| Size | Weight | Water Volume Treated |
|---|---|---|
| RED 25gm | 25g | 10-100 Litres |
| BLUE 25gm | 25g | 100-800 Litres |
| GREEN 25gm | 25g | 500-1500 Litres |
| LARGE GREEN 65gm | 65g | 1000-3500 Litres |
FAQ
How long does it take for the green water to clear after using the Green Pond Block?
It typically takes about 7 days to clear green water, depending on water hardness and algae levels.
Does this product work on all types of algae?
This product targets bacterial algae, which is the majority of aquarium algae. It does not affect green algae caused by plants or other organic sources.
Will this block help stabilize pH levels in the pond?
Yes, it helps stabilize pH by resisting acidifying pH reduction, which can prevent sudden drops in water chemistry.

Joanne Jones –
Used the Green Block in a 1200L pond. After 7 days, the water cleared significantly. No more green spots and ammonia levels have stabilized. Works well in moderately hard water.
Rachel Dyer –
Treated a 1400L pond with the Green block. It took a week to clear the green water. The water has stayed clearer for over three weeks. Good for preventing ammonia spikes.
Gavin Simpson –
Felt like a reliable solution for bacterial algae. The block lasted longer than expected in my pond. Water clarity improved noticeably within a week.