How to Choose a Surface Skimmer

Two types of skimmers are the manufacturer of the pond. The dam is a floating plate is mounted below the waterline. The top swimmer on the surface of the water inside the skimmer. When water is taken from the bottom of the skimmer box outside the pond, the disk through the head difference that exists now pushed closed.

This leads to high water and all waste and debris on them, are pulled from the pond and put in the skimmer. Thetrash collect any large solids such as leaves, but allows water to pass through the filter. The biggest drawback of this design is that the small fish can over the weir by him to swim down and unable to get back into the pond.

The second design has a collar floating skimmer. Instead of the flat plate in the dam design, this version has a round collar high and goes down into the basket. This principle has two advantages. First, the dam normally not be seen from the observatory and the second, a small fish swimming in your neck of the skimmer is swim around and back into the pond.

Finally, set the peak levels of ammonia, nitrite, but is sufficient for the colony of bacteria rise to reduce the level of nitrite to nitrate by oxidation. The result is that both levels of ammonia and nitrite and nitrate is reduced to a minimum for uptake by the plant life from now on in>pond, and the cycle begins again.

As koi grow, they eat more food and produce more waste. If a vegetable filter is inadequate or not installed, then nitrate levels may climb to an unacceptable level and you will have to carry out water changes to restore normal conditions. Nitrate can be reduced by means of the denitrification process, but this involves the use of bacteria that do not require oxygen.

Source: http://sports-fish-ponds.chailit.com/how-to-choose-a-surface-skimmer.html

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