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  • Brushes in biofilters. Ask yourself why do you use brushes? Do you really need them ... possibly not. They do add to the cost without creating a major benefit in most small biofilters. Brushes in off the shelf conventional biofilters have such big gaps in them the only purpose they can serve is to remove long stands such as twigs, lengths of algae etc. For this purpose they are obviously fine .... is this what you want to achieve? For any other reason they are unsuitable. They don't do any harm ... they just make you poorer. biological pond filters

  • The best biofilter medium by far for conventional box-type biofilters is Alfagrog, a porous ceramic medium specially made for purifying fish ponds. Many people use plastic tubes, hair curlers, plastic coke bottle tops and the like. Be aware that these media need to be used in quite large quantities to be effective at holding sufficient bacteria to ensure clean (biologically speaking) water. You will need 40 times the volume of plastic tubes as Alfagrog to achieve the same biofilter capacity. In the USA Alfagrog is also known as Supra biomedia for pond filters

  • Plants in a pond also help to reduce nitrate levels ... the nitrate is formed naturally by he action of bacteria on the excreted waste products from the fish and other aquatic animals. Nitrates are rich in Nitrogen and there is a process of conversion from ammonia excreted by fish to nitrite then to nitrate. Always spray water onto the pond surface when filling with fresh tap water ... any chlorine in the tap water will then be reduced. pond pump supplies

  • Normal centrifugal pumps can operate against a closed valve with little effect upon the well-being of the pump. What you should not do however is restrict the suction side to control flow unless this is for a smallish fountain pump. You know when a pump suctions needs cleaning when the height of your fountain or flow down the waterfall reduces significantly. These days the best pumps do not have sponges inside the suction body. Such sponges are a source of major hassles especially in summer when they block up every couple of days and have to be removed. submersible pumps

  • 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

  • Winter and garden ponds. Pioneering marginals like Bog Bean (Menyanthes trifoliata), the Spearworts (Ranunculus flammula and R. lingua Grandiflora) and Parrots Feather (Myriophyllum aquaticum syn. proserpinacoides) that seem intent on investigating the outer reaches of their universe should be cut back to home base: show them what youre made of. The same goes for Reed Maces ( Typha angustifolia and Typha latifolia). Feel around the baskets to see which plants have linked up in a firm vegetative bond. A bit of basket busting may be in order to sort them out. marginal pond plants

  • Sponges in pond pumps ... These days the best pumps do not have sponges inside the suction body. Such sponges are a source of major hassles especially in summer when they block up every couple of days and have to be removed. So long as you keep this type of pump away from heavy debris on bottom of pond (stand the pump on a brick for example) you will get away with removing the sponge permanently ... although such use would nullify the pump's guarantee. The sponge is there to protect the impellor form debris damage. fountain pumps

  • Use garden pond bottom waste on the compost heap. This organic matter is full of mainly anaerobic bacteria which will catalyze the composting process. Backflushings from the pond filter can be sprayed onto the lawn or garden as a source of nitrogen fertilizer. Use black or opaque pipes in your pond instead of transparent low cost plastic tubing. Since light cannot penetrate the black piping the algae growth inside the pipe will be very considerably reduced. This means less maintenance and also less expenditure on replacing transparent pipe when it becomes clogged with algae. submersible pumps

  • 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

  • A pond's ability to hold koi should not merely be regarded as a function of its physical ability to hold koi, (ie, like storing groceries in a cupboard). A koi pond's stocking rate is determined by the filter's ability to process and breakdown the waste that koi produce. To be more precise, we need to be sure we do not overstock our filter, rather than our pond. This does not merely focus on the biological activity of a filter, but also it's ability to remove solids at the required turnover rate. A pond's water quality management system would also need to provide sufficient aeration for a given stocking rate. http://www.practical-water-gardens.com/benoverstock.htm pond pump selection

 
 

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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