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Ferrdrakon K Full Potassium Fertilizer

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.

Storage Life

Store in a dark cool place (the metal chelate complexes are sensitive to light) - minimum storage life please see database.

The solution that is delivered normally has a light yellow to dark brown colour. After the entry of air, some time later, it can cause the colour to change to dark brown or eventually green-black, but it always remains clear. The effectiveness of the fertilizer is however not affected in any way by this colour change process.

Responsible company
DRAK-Aquaristik Dr. Andreas Kremser
Rosenstraße 22
71101 Schönaich
Germany
+49 7031 776353

39 of 39 reviews

Average rating of 4.9 out of 5 stars


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1 - 10 of 39 reviews

27 June 2024 00:00

Review with rating of 5 out of 5 stars

Bewertung ohne Text

Bewertung ohne Text

18 November 2022 11:53

Review with rating of 5 out of 5 stars

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.

18 July 2022 17:02

Review with rating of 5 out of 5 stars

Benutze den Dünger bei jedem WW.

Guter Dünger

1 July 2022 22:19

Review with rating of 5 out of 5 stars

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!

14 June 2022 08:23

Review with rating of 5 out of 5 stars

Empfehlung Nachfüllpack Pulver, hält sich praktisch ewig

Ferrdrakon + Ferrdrakon K hier im Einsatz. Mein Leitungswasser hat fast kein Kalium und es zeigten sich gewisse Mängel. Eine perfekte Diagnose ist natürlich nicht immer so einfach, aber wenn die Pflanzen und nicht die Algen wuchern kann ja nicht alles verkehrt sein. Hier beim (14tägigen) Wasserwechsel mit Ferr K (im Trigon 350 alle 14 Tage Ferr 15 FerrK 10 Fulvo 15), die Woche darauf nur 20ml Ferr.

14 July 2021 15:05

Review with rating of 5 out of 5 stars

TOP

Dünge nach Anleitun

27 May 2021 15:57

Review with rating of 4 out of 5 stars

Immer wieder gerne

Ich nehme den Dünger immer wieder gerne. Kaufe gern von allen Produkten das Pulver zum Auflösen, wie beispielsweise Ferrdrakon K, Daydrakon, Eudrakon P. Als Ergänzung für mein Pflanzenbecken kommt immer Eudrakon N zum Einsatz.

7 July 2020 09:20

Review with rating of 5 out of 5 stars

Halt DRAK Qualität besser gehts nicht

Sehr guter Dünger

20 March 2020 15:24

Review with rating of 5 out of 5 stars

Benutze den Dünger seit Jahren

Bin sehr zufrieden und kann ihn nur empfehlen.

18 September 2017 16:56

Review with rating of 5 out of 5 stars

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

Some photos from the aquarium of Wilm Thiere from Braunsdorf

Wilm Thiere has always tried to recreate Amano's aquariums.

Accessories

Average rating of 4.7 out of 5 stars

20 ml Dispensing Beaker for Screwing
Simple metering system for dosing fertiliser or water conditioner

€0.99*

Average rating of 4.5 out of 5 stars

1 ml Dispenser pump
Measuring the required quantities of fertiliser or water conditioner

€1.99*
Tip
Programmable single-channel dispenser pump SD-01M
Peristaltic pump with 1 - 99 ml per pulse and digital display

€62.95*

Average rating of 5 out of 5 stars

Metering valve with venting for canisters
With vent for 3 and 5 litre canisters

€8.95*
Sold out
PRODACtest Fe - Iron
Determination of iron (Fe) concentration. For fresh and sea water.

€15.99*

Average rating of 4 out of 5 stars

30 ml Canister pump
Dosing pump for 3 and 5 litre canisters

€13.95*

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