Ferrdrakon K Full Potassium Fertilizer

A 250ml bottle of Ferrdrakon K complete potassium fertiliser from DRAK-Aquaristik with a white lid stands against a black background. The label is multilingual.

Three bottles of Ferrdrakon K complete potassium fertiliser in various sizes. sizes. Label with "DRAK-Aquaristik" and dosage instructions. White background.

€10.90

Contents: 0.25 Litre (€43.60 / 1 Litre)

40 Reviews

In stock, lead time: 1-4 days

IMPLEMENTATION

Refill pack

Solution

AMOUNT

0.25 Litres

0.5 Litres

1.0 Litre

3.0 Litres

5.0 Litres

Bottle

Product number: D0050250

GTIN/EAN: 4260169960102

Length: 170 mm

Width: 50 mm

Height: 50 mm

Shipping weight: 0.3 kg

>> Do you have questions about this article?

Ferrdrakon K complete potassium fertiliser as a ready-to-use solution or as a refill pack

Potassium can become a limiting factor for heavily planted high-light tanks, especially as many plants accumulate potassium far in excess of their requirements.

However, some plants react very sensitively to too little available potassium (e.g. Alternanthera [parrot leaf] and Ammania [cognac plant] species). The symptoms are sudden stunted growth and crippling of the newly forming leaves.
Basic fertilisation with Ferrdrakon with Ferrdrakon K which contains a higher proportion of potassium, more magnesium and some calcium.
The content of iron, manganese and the other trace elements had to be reduced by half compared to Ferrdrakon because the solubility of the potassium salts is too low to be able to set the desired ratio between potassium, iron and the other trace elements without compromise.

Composition

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*, methylparaben, ascorbic acid

* Please observe the package information.

Daily addition at a dosage of 2 ml / 100 litres of aquarium water

600 µg/l potassium, 150 µg/l magnesium, 10 µg/l iron, 4 µg/l manganese, 2 µg/l calcium, 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 only ever be used as part of the Ferrdrakon-dosage. It is based on the calculated or proven dose of Ferrdrakon and replace part of it with double the amount of Ferrdrakon K. If given alone, the potassium intake would be too high in practically all cases.

For this replaced part, the potassium and magnesium intake is 20 times as high as before.

Initially, only a small proportion (a reasonable starting value is 20 - 30 %) of the Ferrdrakon-dose with Ferrdrakon K and only slowly increase the amount replaced. Observe the effect: if there is no further improvement in growth and/or problems with algae occur, the replacement rate must be reduced again.

Daily additions are preferable so that an abrupt weekly increase in potassium concentration does not lead to increased algae growth.
As an exception, you can fertilise the fresh water directly with half the dose (10 ml / 100 l fresh water) if you are otherwise fertilising daily with larger water changes.
A minimum water change of 25 % every 2 weeks is required. Of course, more is not harmful, but makes a lot of sense.

Optimum iron content

0.05 - 0.1 mg/l

Optimum potassium content

10 - 15 mg/l

A strongly excessive potassium content may cause excessive green algae growth or induce magnesium deficiency symptoms by displacing it.

Shelf life

Store in a dark and cool place (the metal chelate complexes are sensitive to light) see database.

The delivered solution usually has a light yellow to dark brown colour. Some time after exposure to air, the colour can deepen to a deep brown or greenish black, but always remains clear. The effect of the fertiliser remains unchanged.

Responsible company

DRAK-Aquaristik Dr Andreas Kremser
Rosenstraße 22
71101 Schönaich
Germany

info@drak.de

Link to DRAK-Aquaristik Dr Andreas Kremser

+49 7031 776353

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15 June 2014 12:22