One might question why it is important to measure these parameters, a pond is an ecosystem which will only survive when these factors are at an optimum level for the aquatic life to survive in, which includes plants around a pond as well. How do I measure the quality of the pond water? Green algae in a pond is not inherently harmful, but excessive growth can cause issues like discoloured water, scum at the pond edges, and dense mats of growth under the surface. Algae can spread rapidly under certain conditions and harm aquatic life by reducing oxygen levels. Additionally, excessive growth can lead to imbalanced nutrient levels in the pond and further water quality problems. Preventing excessive algae growth by regularly maintaining the pond’s ecosystem is crucial. This can include reducing overfeeding, removing debris, introducing beneficial bacteria, and using a UV clarifier to maintain a balanced nutrient level in the water. How do I clear my green pond water? Pond Balance, is an extremely effective solution for filamentous algae, more commonly known as blanket weed. The product works by making calcium unavailable for use in cell structured growth. The net effect of this is that over the thirty days of the treatment, the blanket weed is literally starved out of existence, initially becoming weaker, falling apart and eventually disintegrating completely. Blagdon Green Away 250ml is safe to use in all wildlife ponds and is safe to use in ponds with mixed fish communities. By reducing unicellular algae, viewing pleasure is enhanced, plants and fish can thrive and the unattractive opaque green tinge to your water is eradicated. Once Blagdon Green Away starts to work, particlessink to the floor of the pond or are removed by the filter. Any sludge left behind on the floor of the pond can be removed with Blagdon's Sludge Remover which prevents oxygen levels from becoming effected. For Green Away to work the pH must be between 6.5 and 8.5. The pH of your pond can be tested using a Blagdon Pond Test Kit, incorrect pH can be remedied by using the pH Adjuster range.

Perhaps the single greatest advance in recent years in the battle against green water has been the development of reliable and affordable ultra-violet (UV) clarifiers. Aside of its effectiveness in destroying the algae which cause the problem, this approach has a number of other advantages. It has no effect on water quality and because it takes place away from the pond itself, it poses no threat to the plants or fish. Easy to install and cheap to run, a good quality UV unit combined with a biological filter system and an appropriate planting regime offers the best possible means of dealing with the green water scourge – though it is important to remember to change the UV bulbs every year. A number of manufacturers produce UV units to suit a range of pond sizes, widely available from garden centres and other retail outlets. If neither of the above apply and the initial treatment with Green Away only partially cleared the water, it is recommended that a second dose be administered the next day. For Clear Pond to work the pH must be between 6.5 and 8.5. The pH of your pond can be tested using a Blagdon Pond Health Test Kit, incorrect pH can be remedied by using the pH Adjuster range. The pond may contain unusually large lightweight particles which can easily be stirred up by currents in the pond or by larger fish. Clear Pond works by coagulating small particles and is therefore not intended to overcome this problem. The answer in this case is to install a pond filter. Various models are available from your local aquatic centre.For another natural additive, barley straw could fit the bill. Administered either as pouches of straw, or doses of straw extract, it is an approach which some have hailed as a miracle cure – though not all pond-keepers are unanimous in this opinion. It takes a month or two to show any effect, but the natural enzymes are said to have remarkable abilities to inhibit algal growth – making it effective against blanket weed also. Chemical treatments for green pond water

Effective against blanketweed/string algae, consumes sludge, makes tap water safe and feeds aquatic plants. A UV clarifier is a recommended treatment for green pond water. It uses a UV light to kill the algae cells in the water, leading to a clearer pond. The amount of time it takes for a UV clarifier to work varies depending on several factors, including the size of the pond, the strength of the UV clarifier, and the severity of the algae bloom. With a properly sized UV clarifier, green pond water can clear up in a week or less. How can I clear my green pond water fast? But what happens when your new pond water turns green. It’s not because you have done anything wrong, more that things are slightly out of balance with your setup. Green pond water is caused by an imbalance in your eco-system. Although it is most commonly encountered in recently constructed ponds, where the water chemistry and planting has not yet settled down, older, more established water features are not immune. In circumstances when the green water has not cleared after treatment, it could be due to the water chemistry or fine particles.

More nutrients than your existing pond plants can use which stimulates algae growth. Nutrient levels can be controlled by encouraging plenty of healthy fast growing pond plants and regularly removing waste and sludge from the pond.