€10.90*
Available, delivery time: 1-4 days
Ferrdrakon K Full Potassium Fertilizer as ready-to-use solution or as refill pack
For strongly planted and strongly lighted pools, potassium can be a limiting factor, as many plants take-up much more potassium than they need.
Some plants react very sensitively to a lack of potassium (e.g. Alternanthera [parrot leaf] - and Ammania [Cognac plant] - species). The symptoms are sudden growth standstill and crippled new leaf growth.
Here the basic fertilizing with Ferrdrakon can be supplemented using Ferrdrakon K that has a higher content of potassium, more magnesium and some calcium.
The content from iron, manganese and other trace elements must be reduced by half compared with Ferrdrakon, because the solubility of the potassium salts is too small, to obtain the desired relationship between potassium, iron and the other trace elements without having to make compromises.
Ingredients
30,000 mg/l potassium, 7,500 mg/l magnesium, 500 mg/l iron, 200 mg/l manganese, 100 mg/l calcium, 30 mg/l boron, 10 mg/l copper, 10 mg/l molybdenum, 10 mg/l zinc, 5 mg/l nickel, 5 mg/l cobalt, 4.6 mg/l iodide, EDTA, HEEDTA, DTPA, NTA or IDHA*, methyl paraben, ascorbic acid
* Please note package information
Daily Allowances by a dosage of 2 ml /100 l of aquarium water
600 µg/l potassium, 150 µg/l magnesium, 10 µg/l iron, 4 µg/l manganese, 0.6 µg/l boron, 0.2 µg/l copper, 0.2 µg/l molybdenum, 0.2 µg/l zinc, 0.1 µg/l nickel, 0.1 µg/l cobalt, 0.092 µg/l iodide
Dosage
Ferrdrakon K should always only replace a part of the Ferrdrakon dosage. One starts at the calculated or recommended dosage of Ferrdrakon and replaces a part with the double amount of Ferrdrakon K. By using it on its own, the potassium dosage in practically every case would be too high.
For the replaced part the potassium and magnesium dosage is 20 times higher than before.
One should start only with a small part (a sensible amount would be 20 - 30 %) of the Ferrdrakon dose, replaced with Ferrdrakon K and the replaced part should be only slowly increased. The effect should be observed: When there is no more growth improvement and/or problems with algae begin, one must reduce the replaced part-dosage again.
Using a daily dosage is preferred, to avoid a sudden weekly “step-increase” in the concentration of potassium, which can in turn lead to increased algae growth.
Exceptionally, in the case of daily fertilisation with larger water changes, the fresh water can be fertilised directly with half the dose (10 ml / 100 l fresh water).
A pre-requisite for this is that a minimum of 25 % exchange of water takes place every 2 weeks. Of course a greater water exchange does no harm rather is quite a sensible move.
Ideal iron content
0.05 - 0.1 mg/l
Ideal potassium content
10 - 15 mg/l
Excessive overdosing of potassium can cause an exorbitant growth of green algae or insufficiency symptoms by blocking the absorption of magnesium.
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26 February 2013 17:29
Super !...
Super !
12 June 2013 09:57
Dosierung nach Empfehlung...
Dosierung nach Empfehlung
15 June 2014 12:22
Pflanzen reagieren sofort. End...
Pflanzen reagieren sofort. Endlich wieder gesundes Wachstum und keine zu kleinen und braunen Wüchse.
29 September 2016 16:30
Für mich gibt es keinen besser...
Für mich gibt es keinen besseren Dünger. Sehr gut auch die klare Angabe der Inhaltsstoffe.
1 July 2022 22:19
Nie wieder ohne Kremser Dünger
Dank einer Empfehlung habe ich meine Dünger hier gekauft und mit Dosierpumpe mein Aquarium optimiert. So schön war es noch nie :-) Sowohl der fertige Dünger als auch das Pulver zum selber mischen ist zu empfehlen. Vielen Dank für die tollen Produkte!
7 March 2013 21:17
Dosierung minimal über Empfehl...
Dosierung minimal über Empfehlung Top Produkt
11 December 2013 11:18
Durch die gezielte Zugabe von ...
Durch die gezielte Zugabe von einzelnen Substanzen kann differenzierter auf einzelne Mängel eingegangen werden als bei einem Volldünger.
1 November 2014 10:06
Das Produkt wird täglich (ein ...
Das Produkt wird täglich (ein paar Tropfen) dosiert. Für jedes Pflanzenaquarium geeignet.
6 October 2016 22:03
Ich benutze das Pulver zum Ers...
Ich benutze das Pulver zum Ersten mal. Bis jetzt hatte ich es Flüssig. War Super. Die Pflanzen Top.
18 July 2022 17:02
Benutze den Dünger bei jedem WW.
Guter Dünger
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