Dennerle Plant Care P 250ml

Dennerle Plant Care P 250ml

  • Targeted supply of phosphate
  • For demanding aquarium plants
  • For intensive leaf colouring
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Dennerle Plant Care P is a phosphate macronutrient fertiliser for planted and demanding aquaria.
Plants need phosphate to build numerous organic compounds. It plays a central role in energy metabolism (as ATP = adenosine triphosphate). In addition, it is an essential component of cell membranes and the genetic material DNA. Since phosphate is usually in short supply in the wild, plants have developed highly effective enrichment methods. The nutrient can be stored in the plant cells and remobilised when needed. The addition of phosphate is not necessary in normal, planted community aquariums, as it usually enters the aquarium in sufficient or often even too large quantities via the food and fish excretions. In demanding planted aquariums, however, (e.g. aquascaping aquariums, Holland aquariums) the situation is different. They have an above-average nutrient requirement, especially for macronutrients. This is due to the large proportion of aquatic plants and the low fish stocking in the aquarium.

In these types of aquariums, a phosphate deficiency can quickly develop. The plants then stop growing. The shoots remain short, the leaves are small and often turn dark green. Some species can also turn purple due to the accumulation of red leaf pigments (anthocyanins).
It is therefore very sensible for demanding plant aquariums to keep an eye on the phosphate content and supplement it if necessary. Every aquarium has a specific nutrient consumption depending on the amount of plants, plant species, animal stocking, feeding, water changes and growth conditions (amount of light, lighting time, CO2 addition, filter technology, etc.). The required amount of fertiliser should therefore be determined individually for each aquarium.


  • Phosphate fertiliser for demanding plant aquariums
  • For the targeted supply of phosphate (PO4)
  • For magnificent plants and intensely bright colours
  • High coverage due to concentrated active ingredients


The fertiliser can be dosed precisely and accurately: 2 ml per 100 l adds 0,2 mg/l phosphate. The recommended concentration is in the range of 0,1 - 0,3 mg/l phosphate (max. 1 mg/l). Higher levels are rarely necessary, they usually only promote algae growth unnecessarily. Plant Care P can be used as a weekly or daily fertiliser.


P fertiliser solution 1
1 % P2O5 water-soluble phosphate
Net mass: See product packaging; Distributor: Dennerle GmbH, D-66981 Münchweiler, Germany

Ancillary components: 0,66 % K2O water-soluble potassium oxide. Processing aids: For preservation: potassium sorbate. Application aids: colorant. Storage instructions: Store at room temperature. Protect from heat and frost. Keep out of reach of children and pets. Application specification: Only for fertilizing ornamental plants in aquaria. For detailed instructions for use and dosage, see package information. Note: Official advice is to take precedence over our information.



Dennerle has been operating in Vinnigen since its foundation in 1966 and, after more than 50 years of company history, the building blocks Dennerle relies on is experience. The philosophy behind Dennerle is to create a small and tangible, intact piece of nature, in harmony with the natural environment. That is why sustainability is a company-wide concept and is implemented at every possible point. In order to achieve an ecologically balanced aquarium, Dennerle relies on a system that is based on 5 pillars. Animals, plants, water, substrate and lighting. Dennerle offers the optimum equipment to bring this complex, but not complicated system into harmony.

General information

Item no.
EAN 4001615048179
Weight 0,25 kg
Shipping weight 0,30 kg

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