Macro-fertiliser for aquascaping aquariums


Extra power with phosphate and nitrate


  • Highly active ingredients – effective immediately
  • Specifically for aquariums with low fish levels and lush plant growth
  • For fast, strong, healthy growth

The addition of N – Nitrogen (Nitrate) and P = Phosphorus (Phosphate) is not necessary in normal community aquariums, because these substances usually end up in the aquarium in sufficient, or often even too high, volumes via the food. 
In aquascaping aquariums the situation is different. They have exceptionally high nutrient requirements due to:

  • dense planting
  • many fast-growing species
  • high light levels (> 1 watt per litre of aquarium water)
  • CO2-fertilisation
  • 30-50% partial water change per week
  • few fish, if any, but rather shrimp and snails.

NPK-Booster adds nitrate, phosphate and potassium in biologically balanced proportions, which means: 
The nutrient proportions have been chosen so that all micronutrients are taken up by the plants in roughly equal proportions. This means that even with long-term, regular application both a deficiency and also the harmful accumulation of individual nutrients is avoided.



Art. no.ContentsRange
4533105 g (100 ml) 1,000 l
4534262,5 g (250 ml)2,500 l
4535525 g (500 ml)5,000 l
  • Dosage and application

    nutrients added [mg/l]





      5 ml / 100 l  2,5 0,1   0,5
    10 ml / 100 l  5 0,2  1
    20 ml / 100 l  10 0,4  2

    Guidelines for plant aquariums

       5-15  0,1-0,4  5-10
  • Use with Dosator
    For aquarium  Dosage Dosage ring size Cycle
    100 L 10 ml without = max. 1 week
    50 L 5 ml 6 1 week
  • Declaration

    NK fertiliser solution 1+1
    1.1 % N total nitrogen, 1 % nitric nitrogen
    1.3 % K2O water soluble potassium oxide
    Net weight: 105 g (100 ml)       
    Distributor: Dennerle GmbH, D-66981 Münchweiler
    Other constituents: 0.14 % P2O5 water soluble phosphate, 0.21 % water soluble sulphur, 0.15 % MgO water soluble magnesium oxide, 1.2 % Na water soluble sodium, 1.76 % organic substance           
    Preparation aids: Preservatives: Potassium sorbate
    Application aids: colouring
    Storage instructions: Store at room temperature. Protect against heat and frost. Keep out of the reach and sight of children and pets.
    Application guidelines: for fertilisation of ornamental plants in aquaria only. See package insert for detailed application instructions and dosages.
    Note: Official guidance and recommendations take precedence.