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Some intensively planted and lighted pools (also ?Holland pools?, ?Flower borders? etc) with a moderate till low fish population need, in comparison to the majority of typical aquariums, a supplement to the basic food stuff nitrogen - N (Eudrakon N), phosphorus - P (Eudrakon P) and potassium - K (Ferrdrakon K) for plants.
In stronger inhabited pools the fish excrement as well as the added fish food provide for bacterial mineralization and supply of life dependent food stuffs.
A clear indication for the need to add to these food stuffs, begins slowly, because many plants have a large storage capacity of nitrates, potassium, and phosphates. Typical is however small growths, violet colouration due to the building of Anthocyan, yellow coloration through a nitrogen deficit chlorosis and a general growth slow-down up culminating in a complete growth-stop. Added to this comes a creeping incipient algae growth, that is at first totally inexplicable, because the water values appear to be completely in order.
It is worth mentioning, that the elimination of a growth deficit through the inevitable increase in bio-mass production often leads to an increased need for other food stuffs. At the end of the day by a balanced food- stuff supply the amount of light provided, should have the largest effect on growth limitation.
Using Eudrakon P Power is an easy and reliable way of avoiding competition between difficult and sensitive aquatic plants. Because the nutrients are almost continuously available, no plant is any longer in a position to snatch away nutrients to another?s disadvantage, i.e. consume them faster than its rivals.
- Discharge amount per mesh bag: 10 or 25 mg phosphate (absolute) per day
- Release Time: 2 Months
- Active ingredient: Potassium hydrogen phosphate
- Storing the closed containers in a dark place: unlimited
- Place in the filter or another location with good water through-put. Before the first usage flush through well using fresh water
- For larger pools, simply use more than one plastic mesh-bag
- Vor der ersten Verwendung kurz mit fließendem Wasser abspülen
The application can be stopped at any time by simply removing the plastic mesh-bag from the water (but please be careful because the fertilizer solution contains heavy metal components, like iron and manganese that can cause difficult to remove marks and so please use an insensitive underlay).
After large water exchanges and/or in pools with a very large requirement for fertilizer it is a good idea to fertilize the fresh water with half the recommended dose of Ferrdrakon or Ferrdrakon K (when a larger need for potassium exists). It serves then as a replacement for the fertilizer lost when exchanging the water.
Aquarium plant fertilisers, water conditioners, re-mineralising salts and supplies for marine aquaristics made by a specialist. Dr. Andreas Kremser (DRAK) offers a wide product range for aquarium plant enthusiasts. Besides micronutrient fertilisers like his Ferrdrakon complete iron fertiliser he offers macronutrients as well as micronutrient fertilisers for special purposes like the KramerDrak - complete iron fertiliser for strongly lit tanks.