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  • Algae Isnt Bad, Is It? Algae can be either beneficial or detrimental to a pond, depending on the owners viewpoint. Algae provide nutrients for newly hatched fry, and indirectly act as a color enhancer. As algae grow in a pond, a population of zooplankton will also develop, on which the fish feed. These natural live feeds help develop the intense coloration desired in most koi. Unfortunately, algae blooms prevent viewing the fish so that sick fish can go undetected for days or even weeks. pond algae and uv

  • Building bridges in and around your water garden ... encouraging aquatic pond wildlife to come and go Encourage wildlife into your pond environment. A pond attracts a wide variety of wildlife and the attraction can be made even greater by paying attention to a few approaches of design and layout. In nature diversity is enormous. You find that certain animals prefer shallow areas, others stony areas and still others wooded sections. Many insects prefer riffling running waters over a clean bed of gravel. http://www.practical-water-gardens.com/artbuildbridges.htm all about water garden fountains

  • Save when you buy koi food or fish food. Check your koi fish food label. Do NOT waste money. Understand the specification on koi food and fish food packets and you will save considerable amounts of money and grow bigger koi fish more quickly. Do not believe everything you are told about koi food it might not be true. Check for yourself easily. Koi Food If a 5 kg bag of koi food contains 15% ash, 10% moisture and 3% fibre then 28% of the bags contents (amounting to a whopping 1.4 kg) is a total waste of money. http://www.practical-water-gardens.com/koifood.htm pond pump selection

  • Pumps ... most small submersible pumps have impellors designed to turn in a single direction. This type normally have curved rotor blades for improved pumping efficiency. To make sure they do not start up in the wrong direction when you switch them on this type of rotor can only be turned by hand about 3/4 of a turn before it comes to a deliberate stop. If and when your pump suddenly stops pumping this is the first and easiest test to do to find out if the rotor needs changing or if something more serious is wrong with your pump. If the blades go round and round and round you probably just need a new rotor. pond pump flow rates

  • A biofilter is absolutely essential if you want to keep fish in a pond. In my opinion it is cruel not to install a biofilter since without a biofilter the fish will live in a potentially highly toxic environment. A biofilter will automatically start itself up once fish are introduced into a pond. Nitrosomonas and Nitrobacter are naturally occurring and will rapidly find their own way into the filter. They then need oxygen from circulating water as well as excreted ammonia from the fish (this occurs naturally) to thrive and multiply. It will take some considerable time for the biofilter to reach maturity. pond filters

  • Filamentous algae and blanket weed. Attached filamentous algae can be seen growing on the rocks of a waterfall or on the sides of the pond. The growth of filamentous algae results from high levels of nutrients, carbon dioxide and the catalyst, the suns energy. Methods of controlling filamentous algae include increased shade, reducing the frequency of fish feedings, practical water changes, and the use of chemicals or plecostomus (algae-eating fish) during the summer months. High pH levels suit algae growth of this kind. This is one reason chalk stream or spring creeks tend to have blanket-weed and are very clear. blanketweed in fish ponds

  • 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

  • Pumps ... most small submersible pumps have impellors designed to turn in a single direction. This type normally have curved rotor blades for improved pumping efficiency. To make sure they do not start up in the wrong direction when you switch them on this type of rotor can only be turned by hand about 3/4 of a turn before it comes to a deliberate stop. If and when your pump suddenly stops pumping this is the first and easiest test to do to find out if the rotor needs changing or if something more serious is wrong with your pump. If the blades go round and round and round you probably just need a new rotor. pond pump flow rates

  • Too much algae in pond .... Beware algae blooms in ponds. Let's equate this to what living organisms do in the pond. Think of the flora and fauna as exhaling carbon dioxide while inhaling oxygen during the night. From this you will agree that dawn is the critical time in a pond. Often people wake up to find dead fish and wondered what happened. Such deaths could be associated with very low oxygen levels coinciding with high carbon dioxide levels. When ponds are full of suspended algae such problems can arise. pond algae

  • Algae influence the water quality of the pond mainly by affecting the balance among dissolved oxygen, pH, carbon dioxide and nutrients. Algae produce oxygen, remove nutrients and take up respired carbon dioxide from both the fish and the algae itself. In heavily stocked ponds, the water becomes super-saturated with carbon dioxide. During daylight hours, algae can quickly strip the carbon dioxide out of the water, and pH levels can rise above nine in a matter of hours. Fish not acclimated to such sharp shifts may initially show signs of stress. uv light specification

 

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

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