Ferrdrakon K Full Potassium Fertilizer
€10.90
In stock, lead time: 1-4 days
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.
Rosenstraße 22
71101 Schönaich
Germany
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2 - 10 by 40 Reviews
18 September 2017 16:56
I was able to increase my potassium value...
Ferrdrakon K Full Potassium Fertilizer
Finally managed to push my potassium level to the desired value of 15ml per litre. Otherwise almost impossible to achieve with standard fertilisers
6 October 2016 22:03
I use the powder for the first time.
Ferrdrakon K Full Potassium Fertilizer
I'm using the powder for the first time.
Until now I had it liquid.
Was great. The plants are great.
29 September 2016 16:30
For me, there is no better...
Ferrdrakon K Full Potassium Fertilizer
For me, there is no better fertiliser. The clear indication of the ingredients is also very good.
27 May 2016 16:14
fits...
Ferrdrakon K Full Potassium Fertilizer
fits
1 January 2016 16:46
1A fertiliser...
Ferrdrakon K Full Potassium Fertilizer
1A Fertiliser
17 June 2015 16:43
In my opinion this is a good product...
Ferrdrakon K Full Potassium Fertilizer
In my opinion this is a good product and reasonably priced
21 January 2015 08:36
Good...
Ferrdrakon K Full Potassium Fertilizer
Good
23 December 2014 10:53
Plants now grow perfectly with ***...
Ferrdrakon K Full Potassium Fertilizer
Plants now grow perfectly with ***.
19 November 2014 08:21
Very good...
Ferrdrakon K Full Potassium Fertilizer
Very good
1 November 2014 10:06
The product is dosed daily (a ...
Ferrdrakon K Full Potassium Fertilizer
The product is dosed daily (a few drops).
Suitable for every plant aquarium.
Some photos from the aquarium of Wilm Thiere from Braunsdorf
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Contents: 0.5 Litre (€33.90 / 1 Litre)
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