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Water hardness products

Water hardness is an essential element to keep an eye on for your garden pond. It is necessary to control the level of GH & KH several times a year if you have a pond with fish and plants. A high level of hardness guarantees the good health of your fish in the event of pollution in the water. It is also a complementary contribution in minerals which will allow plants and fish to develop well.
  • Colombo Duretés Colombo Balantex 2500ml pour 17,5m³ - Maintient le GH et le KH- Les 2 en 1 8715897190322 05020109
    Colombo Duretés Colombo Balantex 2500ml pour 17,5m³ - Maintient le GH et le KH- Les 2 en 1 8715897190322 05020109
    €30,49 - €30,49
    €30,49
    €30,49 - €30,49
    €30,49

    Colombo Balantex 2500ml for 17.5m³ - Maintains GH and KH - The 2 in 1

    Colombo

    By regularly adding Balantex to your pond water, you keep the water values ​​at the right level and thus create the basis for transparent and heal...

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    €30,49 - €30,49
    €30,49
    €30,49 - €30,49
    €30,49
  • Colombo Duretés Colombo Balantex 5000ml pour 35m³ - Maintient le GH et le KH- Les 2 en 1 05020110
    Colombo Duretés Colombo Balantex 5000ml pour 35m³ - Maintient le GH et le KH- Les 2 en 1 05020110
    €49,99 - €49,99
    €49,99
    €49,99 - €49,99
    €49,99

    Colombo Balantex 5000ml for 35m³ - Maintains GH and KH - The 2 in 1

    Colombo

    By regularly adding Balantex to your pond water, you keep the water values ​​at the right level and thus create the basis for transparent and healt...

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    €49,99 - €49,99
    €49,99
    €49,99 - €49,99
    €49,99
  • Aquatic Science Qualité d'eau Optiminera 10000 - Augmente et stabilise les duretés d'eau - IchiPond 5425009250624 NEOMIN010B
    €16,95 - €16,95
    €16,95
    €16,95 - €16,95
    €16,95

    Optiminera 10000 - Increases and stabilizes water hardness - IchiPond

    Aquatic Science

    Optiminera increases and stabilizes pH, GH and KH. Rich in natural minerals and trace elements. Optiminera's natural minerals optimize pH and hard...

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    €16,95 - €16,95
    €16,95
    €16,95 - €16,95
    €16,95
  • Aquatic Science Qualité d'eau Optiminera 20000 - Augmente et stabilise les duretés d'eau - IchiPond 5425009250716 NEOMIN020B
    Save 16% Save %
    €24,95
    €24,95 - €24,95
    €24,95
    €21,02
    €21,02 - €21,02
    €21,02

    Optiminera 20000 - Increases and stabilizes water hardness - IchiPond

    Aquatic Science

    Optiminera increases and stabilizes pH, GH and KH. Rich in natural minerals and trace elements. Optiminera's natural minerals optimize pH and har...

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    €24,95
    €24,95 - €24,95
    €24,95
    €21,02
    €21,02 - €21,02
    €21,02
    Save 16% Save %
  • Aquaforte Duretés AquaForte Bio-Stabil 2,5kg - Exhausteur de qualité d'eau 8717605074702 SC807
    Aquaforte Duretés AquaForte Bio-Stabil 2,5kg 8717605074702 SC807
    €29,95 - €29,95
    €29,95
    €29,95 - €29,95
    €29,95

    AquaForte Bio-Stabil 2.5kg - Water quality enhancer

    Aquaforte

    BioStabil does what its name promises: to ensure a stable pond environment for Koi and other fish by permanently guaranteeing a natural pH value, ...

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    €29,95 - €29,95
    €29,95
    €29,95 - €29,95
    €29,95
  • Aquaforte PVC AquaForte GH+ 1L / ± 1000gr 8717605085074 SC840
    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95

    AquaForte GH+ 1kg - Increases overall hardness

    Aquaforte

    Increases the total hardness (GH-value magnesium/calcium hardness) of the pond water. Dosage: 25 ml/gr of GH+ is suitable to increase the value of...

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    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95
  • Aquaforte PVC AquaForte GH+ 2,5L / ± 2500gr 8717605088976 SC850
    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95

    AquaForte GH+ 2.5kg - Increases overall hardness

    Aquaforte

    Increases the total hardness (GH-value magnesium/calcium hardness) of the pond water. Dosage: 25 ml/gr of GH+ is suitable to increase the value of ...

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    €19,95 - €19,95
    €19,95
    €19,95 - €19,95
    €19,95
  • Aquaforte PVC AquaForte GH+ 10L / ± 10000gr 8717605088983 SC851
    Save 23% Save %
    €89,95
    €89,95 - €89,95
    €89,95
    €69,11
    €69,11 - €69,11
    €69,11

    AquaForte GH+ 10kg - Increases overall hardness

    Aquaforte

    Increases the total hardness (GH-value magnesium/calcium hardness) of the pond water. Dosage: 25 ml/gr of GH+ is suitable to increase the value of...

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    €89,95
    €89,95 - €89,95
    €89,95
    €69,11
    €69,11 - €69,11
    €69,11
    Save 23% Save %
  • Aquaforte PVC AquaForte KH+ 1L / ± 1000gr 8717605085098 SC842
    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95

    AquaForte KH+ 1kg - Increases carbonate hardness

    Aquaforte

    Increases the KH value (carbonate hardness) of pond water. Dosage: 25 ml/gr of KH+ is suitable to increase the value of 150 liters of water by 3 t...

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    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95
  • Aquaforte PVC AquaForte KH+ 10L / ± 10kg 8717605093468 SC838
    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95

    AquaForte KH+ 10kg - Increases carbonate hardness

    Aquaforte

    Increases the KH value (carbonate hardness) of pond water. Dosage: 25 ml/gr of KH+ is suitable to increase the value of 150 liters of water by 3 to...

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    €51,95 - €51,95
    €51,95
    €51,95 - €51,95
    €51,95
  • Aquatic Science Qualité d'eau IchiPond GH+ 0,4kg - Aquatic Science NEOGHP400B
    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95

    IchiPond GH+ 0.4kg - Aquatic Science

    Aquatic Science

    GH+ increases the total hardness of water (mineral salts). Optimal GH should be above KH and usually above 8. Rainwater lowers GH. A value that i...

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    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95
  • Aquatic Science Qualité d'eau IchiPond KH+ 0,4kg - Aquatic Science NEOKHP400B
    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95

    IchiPond KH+ 0.4kg - Aquatic Science

    Aquatic Science

    KH+ increases the carbonate hardness of the water as well as the pH. An optimal KH is above 6°A and always below GH. Rainwater lowers the KH. Too ...

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    €9,95 - €9,95
    €9,95
    €9,95 - €9,95
    €9,95
  • Air-Aqua Qualité d'eau Mineral+ Control 1KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050810 40180-1
    Air-Aqua Qualité d'eau Mineral+ Control 1KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050810 40180-1
    €17,50 - €17,50
    €17,50
    €17,50 - €17,50
    €17,50

    Optiminera 10000 - Increases and stabilizes water hardness - IchiPond

    Air-Aqua

    Optiminera increases and stabilizes pH, GH and KH. Rich in natural minerals and trace elements. Optiminera's natural minerals optimize pH and hard...

    View full details
    €17,50 - €17,50
    €17,50
    €17,50 - €17,50
    €17,50
  • Air-Aqua Qualité d'eau Mineral+ Control 2.5KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050827 40180-2.5
    Air-Aqua Qualité d'eau Mineral+ Control 2.5KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050827 40180-2.5
    €32,95 - €32,95
    €32,95
    €32,95 - €32,95
    €32,95

    Optiminera 10000 - Increases and stabilizes water hardness - IchiPond

    Air-Aqua

    Optiminera increases and stabilizes pH, GH and KH. Rich in natural minerals and trace elements. Optiminera's natural minerals optimize pH and hard...

    View full details
    €32,95 - €32,95
    €32,95
    €32,95 - €32,95
    €32,95
  • Air-Aqua Qualité d'eau Mineral+ Control 5KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050834 40180-5
    Air-Aqua Qualité d'eau Mineral+ Control 5KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050834 40180-5
    €59,95 - €59,95
    €59,95
    €59,95 - €59,95
    €59,95

    Optiminera 10000 - Increases and stabilizes water hardness - IchiPond

    Air-Aqua

    Optiminera increases and stabilizes pH, GH and KH. Rich in natural minerals and trace elements. Optiminera's natural minerals optimize pH and hard...

    View full details
    €59,95 - €59,95
    €59,95
    €59,95 - €59,95
    €59,95
  • Air-Aqua Qualité d'eau Mineral+ Control 10KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050841 40180-10
    Air-Aqua Qualité d'eau Mineral+ Control 10KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050841 40180-10
    €109,95 - €109,95
    €109,95
    €109,95 - €109,95
    €109,95

    Optiminera 10000 - Increases and stabilizes water hardness - IchiPond

    Air-Aqua

    Optiminera increases and stabilizes pH, GH and KH. Rich in natural minerals and trace elements. Optiminera's natural minerals optimize pH and hard...

    View full details
    €109,95 - €109,95
    €109,95
    €109,95 - €109,95
    €109,95
  • Air-Aqua Qualité d'eau Mineral+ Control 25KG - Augmente et stabilise les duretés d'eau - Air-Aqua 8717591050858 40180-25
    €229,95 - €229,95
    €229,95
    €229,95 - €229,95
    €229,95

    Optiminera 10000 - Increases and stabilizes water hardness - IchiPond

    Air-Aqua

    Optiminera increases and stabilizes pH, GH and KH. Rich in natural minerals and trace elements. Optiminera's natural minerals optimize pH and hard...

    View full details
    €229,95 - €229,95
    €229,95
    €229,95 - €229,95
    €229,95