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.

10 of 38 reviews

4.89 out of 5 stars


89%

11%

0%

0%

0%


Leave a review!

Share your experiences with other customers.


17 February 2013 23:36

verwende Ferrdrakon seit über ...

verwende Ferrdrakon seit über einem Jahr in einem 400L-Becken mit üppiger Bepflanzung und teilweise heiklen Pflanzen, bisher gutes Wachstum und keine Mangelerscheinungen

7 May 2013 08:54

Ich habe in meinem Aq das Prob...

Ich habe in meinem Aq das Problem der Eisenrücklösung und die Nährstoffzugabe zur Fütterung ist mit dem Bedarf der Pflanzen im Gleichgewicht (N und P), nur zeigt sich aber immer Kaliummangel, da ist das Produkt das Mittel der Wahl.

17 February 2014 10:12

Kombiniert mit Ferrdrakon Top...

Kombiniert mit Ferrdrakon Top Düngesystem

1 January 2016 16:46

1A Dünger...

1A Dünger

14 July 2021 15:05

TOP

Dünge nach Anleitun

20 February 2013 21:49

Sehr einfach in der Anwendung ...

Sehr einfach in der Anwendung und wirklich ergiebig. Super Ergänzung zu Ferrdrakon

30 May 2013 22:25

auch gut...

auch gut

11 April 2014 11:38

Diesen Dünger benutze ich seit...

Diesen Dünger benutze ich seit Jahren und bin sehr zufrieden mit dem Pflanzenwuchs. Natürlich muss ggf. mit anderen Düngern ergänzt werden. Schlagwort NPK.

14 June 2022 08:23

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.

26 February 2013 17:29

Super !...

Super !

Accessories

20 ml Dispensing Beaker for Screwing
Plain dispensing system (capacity max. 20 ml) for measuring the necessary amount of fertilizer or adding water treatment.

€0.99*
1 ml Dispenser pump
For measuring fertilizer or adding water treatment

€1.99*
Tip
Programmable single-channel dispenser pump SD-01M
Programmable single-channel dispenser pump SD-01M (peristaltic pump) / 1 - 99 ml per dosing pulse / digital display

€62.95*
Metering valve with venting for canisters
Metering valve with venting, direct screw top for the 3 and 5 l canisters used here

€8.95*
Sold out
PRODACtest Fe - Iron
Water test kit for measuring the iron concentration (Fe). Suitable for fresh and marine water. Allows up to 63 tests.

€15.99*
30 ml Canister pump
Dosing pump for 3 and 5 litre canisters

€13.95*

Similar Products

Ferrdrakon Full Iron Fertilizer
Complete aquarium fertilizer for the basic supply of normally planted aquaria. As ready-to-use solution and in refill packs

Variants from €8.95*
€0.00*
KramerDrak Special Iron Complete Fertilizer for Strong Light Tanks
Special Full Iron Fertilizer for intensively cultivated plant tanks, strong light and very densely planted tanks. Developed by Hans-Georg Kramer.

Variants from €10.90*
€0.00*
Eudrakon N Nitrogen Fertilizer Solution
Nitrogen Macro Nutrient Fertilizer - Consists of 3 components in the solution - Nitrate, Urea, Ammonium

Variants from €8.95*
€0.00*
Daydrakon Daily & Iron Fertilizer
For an increased need of iron caused through the use of a trickle filter, UV water treatment or through extreme strong plant growth

Content: 0.5 Litre (€27.90* / 1 Litre)

Variants from €8.95*
€13.95*
Eudrakon P Phosphate Fertilizer
Our Phosphate Supplement Fertilizer for heavily planted and illuminated basins with lower fish population. Contains potassium dihydrogen phosphate (KH2PO4)

Content: 0.5 Litre (€22.70* / 1 Litre)

Variants from €6.99*
€11.35*

Enquiry form

Send us an e-mail. We look forward to hearing from you.

Request form
Privacy
Fields marked with asterisks (*) are required.
Thank you for your enquiry. We have received your enquiry and will get in touch with you as soon as possible.