Envii Pond Klear
It binds together microscopic particles that turn the water green, these then sink to the bottom of your pond where the pump can send them to your filter system to be filtered out.
If you haven’t got a pump and filter system the particles will break down organically from the beneficial bacteria contained in Pond Klear.
It’s has natural ingredients so your fish will be fine and it works at 4°C and lower.
This 1 litre bottle treats up to 20,000 litres of water.
Available from Amazon.co.uk
Blagdon Green Away
Blagdon green away is a natural treatment for green water, it clumps together the algae that turns the water green which is the removed through the filtration system or the clumps drop to the bottom of your pond.
It’s harmless to fish, wildlife and plants, in fact your fish would benefit from using green away as the algae is removed more oxygen is available for your fish.
This 250ml bottle treats 5,000 litres (1,100 gallons) of water, it’s a single dose application but you can re-dose after 5 days, there are larger bottles available.
Add the dose to a bucket of water and pour evenly over the surface of your pond.
The solution sticks microscopic algae together making larger heavier clumps that fall to the bottom of your pond for the pump to pick up and pass through the filter, normally the microscopic algae is to small for the filter system to filter out.
It’s harmless to fish and plants.
A 50ml dose will treat 1,000 litres of water, so this 500ml bottle will treat 5,000 litres, also available in 250ml and 1 litre bottles.