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Pond Treatment - Extra information


Bottle or packet size Treats
Treatment Dose Required per 1,000 Litres Treatments Required KH range for best results Oase Companion Product
Oxygen Stabiliser 500ml 10,000 50ml When hot weather decrease O2 levels affecting live stock and nitrifying bacteria.
If using any algaecides such as String Algae Control where O2 will be depleted as algae decomposes.
When cleaning or setting up a biological filter to aid in bacteria colonisation.
4 to 6
Starter Bacteria
Silt Remover
Starter Bacteria 500ml 10,000 50ml When setting up a new pond or Bio-Filter.
Cleaning pond or Bio-Filter.
Increasing bioload such as adding new fish.
4 to 6 Oxygen Stabiliser
pH Value Minus 500ml 10,000 100ml Use to bring down pH 4 to 6 Hardness Plus
Hardness Plus 500ml 5,000 100ml Use to bring up hardness to stabilise pH 4 to 6 pH Value Minus
Crystal Clear 500ml 5,000 25ml Use to clear murky water 4 to 6  
Silt Remover 500ml 10,000 50ml If sludge becomes a problem 4 to 6  
* Pond treatments are ineffective with a low KH.

The Nitrogen Cycle and Importance of Oxygen

Nitrogen is a vital element of protein and is absorbed by green plants in the form of nitrate. Together with ammonia, ammonium and nitrite, it is found naturally in rivers, lakes and streams in very small quantities

In a pond environment, nitrogen compounds (nutrients) can be created quickly by faeces, urine and other excreta, plant remains and decaying food.

When concentrated these nutrients can have a harmful effect on a ponds inhabitants Organic nitrogenous substances decay in stages in the presence of oxygen, a process called ‘oxidative breakdown’. It produces various nitrogen compounds (nutrients) as follows…

Toxic ammonia and non-toxic ammonium are produced in the first stage of the nitrogen cycle.
The pH value determines which of the two will predominate. Ammonia occurs at a pH of 7.0 and over.

The second stage of the nitrogen cycle is nitrite which is the result of the bacterial oxidation,
or combustion, of ammonia/ammonium.

Nitrite is also toxic to aquatic life, but not as toxic as ammonia.

In the third and final stage nitrite is converted to nitrate. Nitrate is harmful only in very high concentrations.

The key element and most important factor to get all of the above to work is the availability of free oxygen.

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