Dennerle NPK Booster – Macro Fertilizer


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Dennerle NPK Booster – Macro Fertilizer for Aquascaping aquariums with extra power of phosphate and nitrate.


Dennerle NPK Booster – Macro Fertilizer


  • 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.

How much should I use?

For aquarium Dosage Dosage ring size Cycle
100 L 10 ml without = max. 1 week
50 L 5 ml 6 1 week


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-66957 Vinningen
Raw materials: NK-fertiliser 3+13 with micronutrients.

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 aid: 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

Packaging sizes: 250ml (item no. 4534) and 500ml (item no. 4535)

Additional information


250ml, 500ml