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
Log in
4 - 10 by 40 Reviews
7 May 2013 08:54
I have the problem in my aquarium...
Ferrdrakon K Full Potassium Fertilizer
I have the problem of iron reabsorption in my aquarium and the nutrients added to the feed are in balance with the plants' requirements (N and P), but there is always a potassium deficiency, so the product is the remedy of choice.
6 May 2013 13:02
I fertilise the recommended amount daily.
Ferrdrakon K Full Potassium Fertilizer
I fertilise the recommended amount of Eudrakon P, N and Ferrdrakon K every day and the plants thank me with healthy growth! I have also tested other well-known manufacturers and am now sticking with DRAK!
30 April 2013 00:05
TOP...
Ferrdrakon K Full Potassium Fertilizer
TOP
11 April 2013 17:09
The best fertiliser...
Ferrdrakon K Full Potassium Fertilizer
The best fertiliser
23 March 2013 10:42
Once a week, the recommended amount...
Ferrdrakon K Full Potassium Fertilizer
Once a week, the recommended amount
7 March 2013 21:17
Dosage minimally above recommendation
Ferrdrakon K Full Potassium Fertilizer
Dosage minimally above recommendation
Top product
26 February 2013 17:29
Super !...
Ferrdrakon K Full Potassium Fertilizer
Super !
20 February 2013 21:49
Very easy to use ...
Ferrdrakon K Full Potassium Fertilizer
Very easy to use and really productive. Super addition to Ferrdrakon
17 February 2013 23:36
have been using Ferrdrakon for over ...
Ferrdrakon K Full Potassium Fertilizer
have been using Ferrdrakon for over a year in a 400 litre tank with lush planting and some delicate plants, so far good growth and no deficiency symptoms
6 February 2013 14:37
My tap water has...
Ferrdrakon K Full Potassium Fertilizer
My tap water has an extremely low potassium content. I have therefore reduced the fertilisation with Ferrdrakon by a third and replaced it with twice the amount of Ferrdrakon K. The next few weeks will show whether this is enough.
Some photos from the aquarium of Wilm Thiere from Braunsdorf
Accessories
Similar Products
Contents: 0.5 Litre (€33.90 / 1 Litre)
Enquiry form
Send us an e-mail. We look forward to hearing from you.