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Although a simple plant biotope is not at all a water hole without any life, many garden pond owners see their aquatic garden only with the release of fish becoming alive. Most micro organisms that have developed in a natural fishless eco system will disappear after your put house fish in a pond.
Who has just finished building his water garden in autumn should wait until next spring before he releases fish. The biological balance in a new pond is still very unstable. It would be to risky to force your pond fish to hibernate in such a uncertain aquatic eco system. We suggest you make it a rule to bring in fish always in small amounts, step by step and not before 8 - 12 weeks after you've installed a new fishpond. Let the just planted water flora start growing and wait for the pond to find its biological balance that will be necessary to handle the excrements of the new garden pond fish.
In any case all different kinds of fish have to match each other as well as the amount of all pond life must be in an adequate relationship to each group and to the pond volume itself.
Keep in mind that your fish do not find the same living conditions in an artificial backyard pond as they are used to in a natural lake or bubbling stream.
Make sure before you release house fish in a fishpond that sufficient oxygen and water circulation is guaranteed.
Any noisy construction work will unnecessarily disturb your pond life as well as the entire ecosystem of your water world.
Remember your responsibility to meet animal friendly standards by providing clear and circulating water in the fishpond and continuous water quality with stabile hardness and pH-factor. Aquatic plants should be spread over all pond zones and create an underwater world, that offers lots of space for your fish to swim around and also provide possibilities to hide and rest. Overall you have to control periodically for Fish Diseases in the Garden Pond.
Not every freshwater fish is capable to survive in an artificial garden pond, but you can easily increase its chances by providing best living conditions, high water quality and continuous water circulation. Correct Fish Feeding in a Pond is another important feature to avoid fish diseases. Last not least you may have to think about protection against Herons at a Fishpond, to enjoy the full and unspoilt pleasure of are vivid pond life in your backyard.
Goldfish are for sure the most popular backyard pond fish that are used to survive and reproduce in a fishpond in our climate zone. Goldfish love bubbling, clear water and like to hide or seek for shadow below the floating foliage of water lilies. Prepare hidings in small caves or between piles of stone that goldfish prefer to spawn. Goldfish are very undemanding garden pond animals and combine all positive characteristics of a decorative fish. With good care they can grow up to 30 cm (12 inches) and are easily visible in your water garden because of their shiny orange colour in your goldfish pond. You can feed these robust animals with nearly every fish food including bread or toast. Goldfish prefer water temperatures between 18°C and 24°C (64°F and 75°F). Popular goldfish species are: Gold Veil, Shubunkin.
Probably the most desired aquatic garden in these days is the own Koi-fish pond. Koi can be kept in big pond liners in European climate and they even multiply, if you provide good care to these sensitive species. Koi carps usually become very old. If you like to put Koi fish in a garden pond you need at least a pond depth of 1m (3.3 feet) better 1,30m (4.2 feet). This is vital, especially for a save hibernation of your Koi carp. To build your own artificial Koi pond with a preformed pond shell you will find numerous Fibreglass Garden Ponds that cover all needs for these Asian aquatic animals in a perfect way. You have to calculate about 1000 litre pond water per fish, because these fish often reach the size of 60 cm (23 inch). Koi are fond of company. Therefore your should not start your Koi breeding with less than 5 fish in the water garden.
Officially, domestic Freshwater Fish in a Garden Pond have to origin from breeding, because it is not allowed to catch or deal with these "wildlife" for private fish ponds. Some domestic fish can be a wonderful enrichment in backyard ponds with efficient water circulation and they will allow you interesting studies of nature. If living conditions for domestic pond fish are similar to those in open nature, these house fish may even multiply in your artificial garden pond. Domestic fish, that are capable to live in a water garden are: Gras Karp, Stickleback and Sturgeon.
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