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Water quality

Correct water quality is of great importance for the well-being of the animals and plants in the aquarium. Stress is also often the number one cause of death in fish and shrimp. Maintaining a healthy living environment can be done by testing the values of the aquarium water. With the right resources, conditions can be optimized so that all inhabitants feel at home in the aquarium.

Active filters

  • Brand: HS Aqua
  • Brand: MasterLine
  • HS Aqua Test Set 1 pH/NH4/NO2
    €28.95
    The water quality in your aquarium is subject to fluctuations. To always guarantee optimal living conditions for your fish, we recommend checking the water quality weekly.
  • HS Aqua Test Set 2 GH/KH/NO3/PO4
    €34.95
    The water quality in your aquarium is subject to fluctuations. To always guarantee optimal living conditions for your fish, we recommend checking the water quality weekly.
  • HS Aqua Test Set 3 pH/GH/KH
    €22.95
    The water quality in your aquarium is subject to fluctuations. To always guarantee optimal living conditions for your fish, we recommend checking the water quality weekly.
  • Test strips 6 in 1
    €18.95
  • pH test
    €8.50
    The pH value is one of the most important values of aquarium and pond water. Biological processes in the water can cause the pH value to change over time. Because all aquarium and pond inhabitants react very sensitively to changes in the pH value, regular monitoring is necessary.

    approx. 140 tests
  • KH test
    €8.50
  • GH test
    €8.50
  • NO2 test
    €10.95
  • NO3 test
    €12.95
  • NH3/NH4 test
    €12.95
  • PO4 test
    €13.95
    Phosphate is an end product from the breakdown of organic substances such as food remains, fish feces, etc. In high concentrations it can cause algae growth. Phosphate is also an important source of nutrition for aquarium plants. Use this phosphate test regularly to gain insight into the processes in the aquarium.

    Contents: (approx. 40 tests)
  • Ca test
    €13.95
  • MasterLine Purity
    Content: 250 ml 500 ml
    €21.25

    MasterLine Purity prevents the formation of ammonia and nitrite. It reduces the amount of dissolved organic substances in the water. It helps to increase the oxygen concentration and increases the pearling of plants. Water becomes clearer than ever. Algae growth is prevented.

    Available in 250ml and 500ml

  • MasterLine Zip Bag
    Size: S L
    €6.90

    MasterLine Zip Bag has been specially developed for MasterLine Purity or similar filter media. It is made of very fine material with openings of 250 microns that prevent the grains from escaping. The net can be closed properly with the handy zipper. Made entirely of plastic, it can be used without any problems for regeneration in chlorine.

    Contents: 250ml or 50ml

  • MasterLine KH MINUS
    €19.35
    The optimal KH value of the aquarium is 3. At this value, plant species such as Tonina, Eriocaulon and Syngonanthus can grow without any problems. When the value reaches 3 dKH, do not add any more KH Minus. Too low a KH also results in a pH reduction.

    Contents: 500ml
  • MasterLine Crystal Clear
    €17.75

    MasterLine Crystal Clear makes the aquarium water crystal clear. By adding MasterLine Crystal Clear the oxygen concentration is increased.

    Contents: 500ml

  • MasterLine Safe Water
    €17.75

    MasterLine Safe Water neutralizes chlorine and chloramine and heavy metals. This makes the water from the tap completely safe for use in the aquarium. MasterLine Crystal Clear is up to 15 times more concentrated than comparable products.

    Contents: 500ml

  • HS Aqua Oxy
    Content: 150 ml 350 ml 2500 ml
    €5.95

    HS Aqua Oxy is an additive that increases the oxygen content in the aquarium. When adding HS Aqua Oxy, a tremendous amount of oxygen is released. This is absorbed directly into the water and provides a boost in oxygen levels. Threaded Algae, Bearded Algae and certainly Blue Algae cannot withstand the product and will die quickly.

    Available in: 150ml, 350ml and 2500ml

  • HS Aqua Plant Dip
    Content: 150 ml 350 ml
    €5.95
    HS Aqua Plant Dip reduces the risk of parasites and algae that can appear on new plants. Our plants are grown responsibly with minimal risk of pests.

    Available in: 150ml and 350ml
  • HS aqua Shrimp Protect
    €7.95
    HS aqua Shrimp Protect is a water conditioner for freshwater aquariums with ornamental shrimps.

    Contents: 150ml