Dennerle Plant Care NPK 250ml
Dennerle Plant Care NPK 250ml

Dennerle Plant Care NPK 250ml

Regular price$19.99
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Macro-nutrient Fertilizer for Demanding Planted Aquariums

If you want to create a healthy and flourishing planted environment, it's best to use Dennerle Plant Care NPK fertilizer. This fertilizer contains important macro-nutrients like nitrate, phosphate, and potassium that can help regulate levels and prevent the growth of unwanted algae.

Highlights:

  • Macronutrient fertilizer for heavily planted aquaria with low fish stocking
  • With nitrate (NO3), phosphate (PO4), and potassium (K) plus magnesium (Mg)
  • For splendid plants and intensely bright colors
  • Immediate and long-term effect
  • Scientifically tested and optimized according to nature‘s example
  • Available in 250ml and 500ml sizes

Macro-nutrient Fertilizers for Aquariums With or Without Low Fish Stocking

The three main macro-nutrients, nitrogen (known as nitrate), phosphorus (known as phosphate), and potassium (known as K), are incredibly significant in aquariums. In normal, planted community aquariums, adding nitrogen and phosphorus is usually unnecessary as these substances are adequately provided through food and fish excretions. However, in demanding planted aquariums or aquascaping aquariums, the situation is different. These types of aquariums have a higher nutrient requirement, particularly for macro-nutrients. If there is no or low fish stocking, N or P deficiency can occur, and K deficiency is also possible, but less frequently. This is because potassium is always present in some quantity in tap water and is regularly introduced via complete iron fertilizers like Plant Care Pro. Therefore, it is essential to keep an eye on macro-nutrients and supplement them if necessary in demanding plant aquariums. It is crucial to maintain biological balance while using an NPK fertilizer. Plant Care NPK nutrient ratios are chosen to ensure the plants equally absorb all three macro-nutrients. This way, even with long-term and regular use, there will be no deficiency or detrimental accumulation of individual nutrients. It is crucial to avoid nutrient imbalances as they usually result in algae problems.

When to Use Plant Care NPK?

The nutrient consumption of each aquarium is specific to the quantity and species of plants, animal stocking, feeding, water changes, and growth conditions. Factors such as light quantity, CO2 addition, and filter technology also play a role. To determine the required NPK addition, it is essential to assess each aquarium individually. Plant Care NPK should only be used when there is a real deficiency of macronutrients. It is recommended to measure nitrate and/or phosphate content weekly and dose Plant Care NPK accordingly. Measuring the potassium content of the aquarium water is usually not necessary, as tap water plus Plant Care Pro and Plant Care NPK supply sufficient potassium. Overdosing potassium is hardly possible and is typically not harmful. However, significant overdosing of nitrate and phosphate can promote algae growth. Therefore, it is essential not to use Plant Care NPK without first measuring the nitrate and, ideally, also the phosphate content. Measuring the nitrate content alone will suffice in practice as a basis for deciding on NPK fertilization and dosage. Simple immersion tests, like the Dennerle WaterTest 6in1, can be used for this purpose.

Dosage and Application

  • Measure and fertilize your aquarium regularly for a few weeks to notice a pattern in the values and the macronutrients needed.
  • Add a weekly dose of Plant Care NPK according to standard guidelines of 10 ml/100 L/week, which equates to adding 5 mg/L nitrate, 0.4 mg/L phosphate, and 2.5 mg/L potassium.
  • If your tap water has high levels of nitrate or phosphate, avoid using Plant Care NPK to prevent nutrient imbalances. Instead, use Dennerle Plant Care N or P single-nutrient fertilizers to fill the nutrient gaps.
  • The ideal nitrate-phosphate ratio should be between 10:1 and 15:1.
  • If your tap water has low potassium levels, use Dennerle Plant Care K.
  • Obtain the analysis values of your tap water from your local water supplier.
  • Always use a macro-nutrient fertilizer with a micro-nutrient fertilizer for the best possible plant growth.
  • Use Plant Care NPK with Plant Care Pro for a complete supply of nutrients.
Nitrate (N) Phosphate (P) Potassium (K)
Ideal Values mg/L 10-15 0.1-0.3 10-15
Recommended Concentration Range mg/L 5-30 0.1-1.0 5-30

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