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How To Use These Links
We have extracted brief information about the page you will go to if you
click the link at the end of each paragraph.
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Ponds & algae concerns ... At night, both algae and fish consume oxygen from and exhale carbon dioxide into the system. Algae compete with the fish for available oxygen in the water. A potentially serious impact of an algae bloom is the risk of an "algae crash" triggered by temperature or barometric pressure. When an algae bloom collapses, dead algae cells settle to the bottom of the pond, adding to the decomposing sediments oxygen demand. As the dead algae cells rupture, they release organic nitrogen and phosphorous back into the water, adding to the systems nutrient load. pond algae
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Springtime pondkeeping ... If you are contemplating a major clean out, this is one of the best times to do it, although personally Id have done it before the tadpole explosion. If you do it. rescue as much wildlife as possible and leave any debris draining away on the side over night so that beasties can make their way back into the pool. Also treat any fresh tapwater with pool conditioner. The plants will be coming into new growth. There is still time to divide and replant if you want. You can also feed with a slow release pellet in each basket koi ponds and koi fish
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In winter the filter will continue to operate mechanically at all temperatures above freezing but there is little point in using the U/V unless the temperature of the water rises well past 10C (45F). If this is likely then many U/V clarifier manufacturers advise you fit new a bulb. If it freezes, drain the filter and start again in the spring as though from scratch. This means it will take about 6 weeks for the pond filter to be effective so start up early. all about pond uv and algae
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Winter and garden ponds. Tender marginals need to be removed wholesale. Canna lilies can be potted up and plunged into a bed in cold frames, otherwise keep them cool but frost free and dry along with all the other exotics you have been tempted buy over the last few months. Once upon a time Arum lilies (Zantedeschia aethiopica Crowborough ) and Lobelia cardinalis were treated with the same respect, but now our winters seem quite bearable to them. The more exotic looking yellow and spotty leafed Zantedeschia elliotiana , Z. pentlandii ... Store them under greenhouse staging. oxygenator pond plants
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Measuring pond volume using science .. this is worth pointing out for its simple but brilliant bit of chemistry. Once more I am grateful to a reader for pointing this out to me. This method depends upon a pondkeeper using salt in the pond water. By measuring the salt concentration in the pond water before and after adding a known amount (lbs) of salt to the pond it is possible to calculate the pond volume very accurately and easily assuming the salt hydrometer is also accurate. If you want to know more e mail me and I will send you a calculator pond pump head or pressure
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Testing pond water. This is straight forward and is done by using special kits. Look out for expiry dates since chemicals used for testing are sensitive to time. Do not get carried away with the test results. After all they are indications only. The good reason for testing is to check stability or consistency and not absolute values. When you see a definite change then start testing. If you do test make sure you do the tests at same time every day and record the results on a graph so you can notice any significant changes. One-off results should always be treated with great circumspection. all about ponds and waterfalls
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Pond volume measurement ... Measure the depth using a tape or stick. Using the pond pump measure how long it takes to fill say a 5 gallons container. Now pump water out of the pond for say 5 minutes Record the depth after pumping out water The pond's volume is then calculated as follows: S = depth of pond in inches or any unit before pumping starts D = inches or any unit of water pumped out of pond when pumping stops T1 = time to fill the container T2 = time pump was run to pump out water V = volume of container ..... Volume of pond = (S x V x T2) DIVIDED BY (D x T1) waterfall pumps
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UV light water filters, UV lamp changes & pond algae control. Pond volume, stock density and sunlight intensity is required to specify correctly the size of the Ultra violet (UV) light you need to prevent algae making your pond go green For a pond of around 250 gallons in full sun and highly stocked a 4 watt UV will do the job. This will also be big enough for a pond with very few fish and situated in the shade of 700 gallons. This assumes the UV comes equipped with a quartz tube to ensure the UV runs at peak efficiency. For a pond with average stocking an 8 watts UV will handle pond volumes up to around 1200 gallons depending upon the sun/shade situation. http://www.practical-water-gardens.com/artuvcapacity.htm uv maintenance, lamp changes
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Algae Growth (Photosynthesis) ... koi ponds are usually closed recirculating aquatic systems, meaning that these systems, unlike natural ponds with streams flowing through them, lack a fresh-water flow-through source. Rather, closed recirculating aquatic systems rely on filtration to purify and reoxygenate their water. Outdoor ponds that are closed systems are subject to seasonal algae blooms and attached filamentous algae growth due to nutrient and carbon dioxide buildup. The primary nutrients of concern are nitrogen and phosphorus. Nitrogen is a by-product of decomposed fish waste, uneaten fish food and accumulated sludge in the bottom of the pond. uv size required
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To correct pH problems in a pond use dilute solutions of vinegar, or lemon juice for high pH readings and baking powder for low pH readings. Make sure you do not add too much at once. The procedure is add some, wait, test again. It is important to always test at the same time every day since the natural pond cycle creates pH changes at different times of day. For example as carbon dioxide is released by plants the pH may well decrease, When the plants absorb carbon dioxide the pH could rise again. About 10am is a good time to test. all about water garden fountains
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Never switch off your pond pump for more
than about 60 minutes
Make sure the delivery pipe from the
pond pump is not kinked
Must the UV be placed before the
biofilter?
A waterfall adds oxygen to a pond by
creating a large surface area
Submersible pond pumps can operate
against a closed valve
It is a good idea to pump out about 10%
of your pond water
Lighting in and around ponds creates a
brand new dimension
Sick and tired of looking at debris on
the bottom of your pond?
Do not feed more food than what you fish
can eat
Pond Links and Tips
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