Eudrakon N - Nitrogen fertiliser solution

White bottle of Eudrakon N aquarium fertiliser with blue-purple label and product information for plant tanks.

Three white bottles of Eudrakon N plant pool fertiliser with blue label. The sizes are 250ml, 500ml and 1 litre.

€8.95

Contents: 0.25 Litre (€35.80 / 1 Litre)

39 Reviews

In stock, lead time: 1-4 days

VOLUME

0.25 liters

0.5 liters

1.0 liter

3.0 liters

5.0 liters

Bottle

Product number: D0090250

GTIN/EAN: 4260169960201

Length: 170 mm

Width: 50 mm

Height: 50 mm

Shipping weight: 0.3 kg

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Composition of Eudrakon N

The fertiliser consists of 3 components to ensure a multi-layered nitrogen supply:

Nitrate
urea (urea or carbamide)
Ammonium

Ammonium is absorbed immediately and preferentially by the plants, but cannot be stored. The uptake of ammonium is slightly favoured over the uptake of nitrate for energy reasons. However, higher nitrate concentrations inhibit ammonium uptake (from approx. 5 mg/l nitrate).
Excess ammonium is rapidly oxidised to nitrate by nitrifying bacteria using oxygen. For this reason, and to prevent toxic ammonia from forming in toxic quantities at pH values above 7.5, the relatively low proportion in the fertiliser solution was adjusted.

The second component, urea, is intended to provide a remedy here. Urea, as a nitrogenous end product of the nitrogen metabolism of many animals, can either be absorbed directly by the plants or is slowly hydrolysed by the bacteria in the tank to form ammonium and CO₂.

Nitrate is non-toxic to animals at all common aquarium pH values, even in relatively high concentrations, and is therefore used here as a "storage form".
However, some plants can react to nitrate levels of just over 10 mg/l with growth disorders, so this value need not and should not be exceeded as a rule.

Part of the nitrate is added in the form of potassium and magnesium salts, as potassium and magnesium are also heavily consumed in nitrogen-consuming tanks.

Dosage

Daily max. 1 ml per 50 litres of aquarium water until the desired nitrate concentration is reached.

The desired value is in the range of 3 - 8 mg/litre nitrate. More is rarely necessary and only unnecessarily promotes algae growth.

If there is no uptake by the plants and everything is completely mineralised, 1 ml per 50 l of water corresponds to a direct addition of 2 mg/l nitrate, 0.4 mg/l potassium and 0.1 mg/l magnesium.

Composition

6.8 % nitrate, 2.02 % potassium, 1.0 % urea, 0.48 % magnesium, 0.34 % ammonium, methylparaben, EDTA

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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7 October 2014 10:08

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