Unwins Seeds

Eco-Sure Pond Clear Aqua Plus FAQ's

What does EcoSure Pond Clear do?

EcoSure removes the nitrate arising from the biological filter. Nitrate is formed from the conversion of nitrite that in turn has been oxidised from ammonia. Nitrate can be reduced to zero within a few days and kept at zero by the action of the microbes in EcoSure. Phosphate is also reduced but usually much more slowly. When the nitrate level in the pond water is zero or very, very low there is no food available for the algae – either blanket weed or algae bloom. 

What is Green Algae – what does it use as food?

Floating green scum, suspended particles, blanket weed and silkweed are the most common types of green algae in the UK. Green algae comes in a number of forms but all have the ability to harm aquatic life. Green algae requires nitrates to grow, if you have a lot of green algae you have a lot of nitrates in your water. 

What causes nitrates in my pond?

Nitrates can be created by many different processes. Ponds that are in a sunny area with little shade are susceptible to nitrate build up.

Nitrates also increase when there are too many nutrients in the water. Leaving too much organic matter at a ponds base will create nutrients. If fertilisers can run off into a pond it will increase nutrient levels; as will over feeding fish with both the un-eaten food and additional fish faeces being converted into nitrates.

Ammonia which is naturally excreted through fish gills and faeces is also converted into nitrates by bacteria that use the ammonia as a food source. 

What are the benefits of using EcoSure Pond Clear in ponds?

Eco-Sure Pond Clear gives three benefits to the pond keeper. It removes nitrate and reduces phosphate that feed algae in pond water. As a result, blanket weed (string algae) and algae bloom (green water) die of starvation. Secondly, it digests waste organic matter in the pond. Thirdly, EcoSure Pond Clear will improve the health, growth and disease resistance of fish. 

Is EcoSure Pond Clear temperature dependent?

Yes, EcoSure works best in water temperatures above about 10°C (50°F). However, it will work in lower temperatures but more sluggishly. 

Is EcoSure Pond Clear safe for fish and other wildlife? What about plants?

Yes, EcoSure Pond Clear is safe for fish. There is also no problem for other wildlife, eg newts and frogs. Additionally, EcoSure Pond Clear does no harm to plants. 

However, because EcoSure Pond Clear reduces nitrate levels in the water, plants may grow less strongly. For example, leaves of, say, water lilies grow less vigorously but the bonus is that they should flower better. 

Should the blanket weed be removed before applying EcoSure Pond Clear?

We would advise that as much of the blanket weed as possible should be wound out before the EcoSure Pond Clear is applied. This will reduce the need to clean up weed debris after it has died. It will also keep better control over rising pH levels. 

What happens as the EcoSure Pond Clear starts to work?

The colour of the blanket weed starts to change from green towards brown. It also becomes brittle and pieces break off. Some people have reported that pH levels in the pond water increase as the blanket weed dies. 

How frequently should EcoSure Pond Clear be used and how long does it last in the pond?

Many of our customers make one application and then see no more blanket weed for over one full year. Others keep blanket weed at bay for a few months with one application. However, a minority of pond keepers need more than one dose to suppress blanket weed. Remember every pond is different. 


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