Pond fish. Wintering
Lately becoming more and more popular ponds in suburban areas. And what’s a pond without fish? It can be ordinary gray carp, but often contain a variety of Koi colors. The biggest Koi (a kind of half-meter “pigs”) were seen in the pond, which is like a medieval moat on all sides encircled the plant for the production of aquarium and pond feed “TETRA”. It is located in the small German town of Melle (a few years ago by company TETRA was invited there for a tour). I am not going to describe how to build a pond, stop for wintering, the more negative the temperature is not far off.
OPTION 1: (hard and risky). – Fish overwinter in the pond, this should be a groove that is below the frost line (the Leningrad region is 1.5 meters). In winter, fish do not feed, since they are dormant, but a prerequisite is to ensure the access of oxygen, and this in the pond should be ice-free hole. It achieves good aeration (special compressor) and the installation of pond heaters on the floats.
OPTION 2) – fish are transported home in a prepared aquarium. I have to say – the aquarium should be spacious enough (one thing a couple of small crucians and another 10 to 20 large Koi). Try to keep within the parameters – 1 liter of water 1 cm of fish. Can sajati tighter, but then it will be harder to achieve transparent water, have to install an additional filter and more often to do water change (of course, partial). At the bottom of the soil is desirable (preferably sea smooth pebbles). What is the soil? You can do without it, but then in the water will float the excrement from the fish, every day will have to do a partial water change. In the soil the excrement will be delayed by the same them out easily removed using a siphon during a water change. This is done about once a week and takes very little time. Why smooth pebbles are desirable? The fact is that all goldfish (and Koi also belong to him) is constantly digging in the soil and if the stones have sharp edges, the probability of the appearance of wounds, through which infection enters the body of the fish. By the way, smooth pebbles always have in store CALAGUNA and bring it from our native Russian Crimea.
The heaters in the aquarium with fish pond fishing is to be installed, but the filters must be sufficiently powerful with a large volume of filter material (small sponge will quickly clog and require frequent cleaning). In a large aquarium with big fish is better to use external filters, but can be a powerful internal pump with enough volume open jaws. Why open? The fact that the glass that covers the sponge, limits its size, and the little sponge to get clogged much quicker than most.
In an aquarium with Koi in addition to filtering should be good aeration. All indoor filters are equipped with a similar function, but is safer to put the exterior compressor. The fact is that in the internal filter air is drawn by a powerful stream of water, which creates a pump, but the extent of contamination of the sponge, the flow is reduced, air becomes less and if in time not to wash the sponge, the flow of oxygen is terminated, which can lead to fish kills. The compressor will work regardless of the filter and the air is always in the aquarium.
And last – How to transport fish home. To fish suffocated during the journey, must be large enough capacity. With dense planting it is better to use a special compressor on the battery. In our store such compressor is (by the way, they are often used by fishermen). The battery lasts for many hours. Moreover, this compressor will help you out, if a long time will turn off the electricity.