Ferrdrakon K Full Potassium Fertilizer
€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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23 March 2013 10:42
Einmal wöchentlich, die empfoh...
Einmal wöchentlich, die empfohlene Menge
7 January 2014 21:12
Lässt meine Pflanzen super ged...
Lässt meine Pflanzen super gedeihen!
19 November 2014 08:21
Sehr gut...
Sehr gut
18 September 2017 16:56
Konnte damit meinem Kalium wer...
Konnte damit meinem Kalium wert endlich auf den Gewünschten Wert von 15ml pro Liter puschen. Mit handelsüblichen Dünger sonst kaum zu schaffen
18 November 2022 11:53
Funktioniert gut
Ich dosiere Ferrdrakon K relativ hoch zum Bio Ferrdrakon (5ml K / 3ml Bio FE). Hört sich etwas komisch an, aber funktioniert. Ich hatte das Gefühl, das bei meinem Becken FE zu hoch ist (Tröpfentest sagt was anderes) und K kaum vorhanden ist. Ich habe Pinselalgen auf dem Hardscape die sehr hartnäckig sind. durch diesen täglichen Düngemix (ca. 45% K zu FE) kann ich nun beobachten, das diese hartnäckigen Pinselalgen langsam immer weniger werden. Ich habe an Strömung und Filterleistung rumexperimentiert. Düngung verringert, Düngung erhöht (Vorher nur Ferrdrakon), Jetzt fahre ich mein 500l Becken mit 3ml Bio Ferrdrakon und 5ml Ferrdrakon K pro Tag und die Pinzelalgen werden sichtlich weniger.
11 April 2013 17:09
Der beste Dünger...
Der beste Dünger
11 January 2014 09:10
Sehr gute Ware. Dosierungsanle...
Sehr gute Ware. Dosierungsanleitung ist etwas verwirrend in Bezug auf die Kombination mit Eurdrakon N
23 December 2014 10:53
Pflanzen wachsen mit *** nun p...
Pflanzen wachsen mit *** nun perfekt.
20 March 2020 15:24
Benutze den Dünger seit Jahren
Bin sehr zufrieden und kann ihn nur empfehlen.
30 April 2013 00:05
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