Aquaponica - growing fish and vegetables in symbiosis.
This article is a continuation and supplement to the previous article " Breeding fish and crayfish at the dacha "
Aquaponics - growing fish and plants in one single system and relies on the natural relationship between aquatic animals and plants, which is very favorable for the preservation of the environment.
The system consists of two tanks located one above the other. In the lower tank will live fish and in the upper tank to grow plants. Water to the plants will be supplied with a submersible pump (pump).
And now let's take a closer look at the aqua system.
The waste products of fish contain nutrients for plants, but are toxic to the fish themselves. Plants absorb these substances, which provides them with the necessary nutrition, and thus, purify water for fish (while plants and fish grow more actively). Purified water is returned back to the fish, then the cycle repeats. Soil for plants in this case is used the most common expanded clay or gravel.
Since plants and expanded clay perform the role of a biological filter. In this regard, it is possible to increase the number of fish in the tank without the risk of their disease or poisoning by waste products. Water is added only as it is absorbed by the plants, evaporated in the air, or the biomass is removed from the system.
Fish waste is an excellent natural fertilizer for vegetables or flowers. Yields increase significantly and fruit ripening accelerates . Tomatoes grown on aquaponic, the nitrate content is usually five to ten times less than in the best ground, and the taste and aroma is not inferior.
Abroad, aquaponic is already being used on an industrial scale. And we have this new system.
The disadvantage of this system is that it is necessary to use tanks for plants (for fish you can use an artificial pond) and electricity for submersible pumps.