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Treatments & Care - Aquariums

Maintain the balance of your aquarium with our selection of water and fish care products. This collection includes conditioners, nitrate and phosphate management products, bacteria, and specific solutions.

Start by identifying the problem

Cloudy water, excess nitrites, or a fish showing symptoms require different products. Before taking any action, check the essential parameters and look for possible causes.

  • Water quality: measure ammonia/ammonium, nitrites, pH, and temperature as appropriate.
  • Filtration: check that the biological filter is working and that its flow rate is appropriate.
  • Maintenance: adjust water changes and feeding to suit your aquarium.
  • Care: if fish show symptoms, make an appropriate diagnosis; do not combine several treatments without checking their compatibility.

Choose a suitable product

Products in this category serve very different purposes. Read the instructions, contraindications, treatment volume, and precautions regarding invertebrates, plants, and sensitive species. Some treatments may be incompatible with tanks containing certain species.

Frequently asked questions

Does a nitrate-reducing product replace water changes?

No. It can complement a suitable strategy, but it does not eliminate the need to control the causes of accumulation.

Can you treat a fish without knowing the cause of its symptoms?

Avoid using treatments at random. First, check the water parameters and seek expert advice if in doubt.

Discover our aquarium water tests, our water conditioners, and our aquarium bacteria.

Filters

Easy-Life Profito - Plant Fertilizer - Easy Life - Aquarium Fertilizer – Profito 1L - Fertilizer for plants
Easy-Life Profito - Plant Fertilizer - Easy Life - Aquarium Fertilizer -23 %
€5,72 - €92,40
€5,72 - €92,40
€5,72
€4,39 - €71,49
€4,39 - €71,49
€4,39

Profito - Plant Fertilizer - Easy Life - Aquarium Fertilizer

Easy-Life

ProFito / Universal fertilizer suitable for all aquatic plants in aquariums. Easy-Life ProFito is a universal and very complete fertilizer, suita...

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€5,72 - €92,40
€5,72 - €92,40
€5,72
€4,39 - €71,49
€4,39 - €71,49
€4,39
-23 %
Tetra Nitrate minus 250ML - Naturally reduces nitrate content
€13,59 - €13,59
€13,59
€13,59 - €13,59
€13,59

Nitrate minus 250ML - Naturally reduces nitrate content

Tetra

The particles it contains activate microorganisms that feed on nitrates and break them down biologically. For better water quality For all fr...

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€13,59 - €13,59
€13,59
€13,59 - €13,59
€13,59
Sera Bio Nitrivec - filter media – photo 2
Sera Bio Nitrivec - filter media
€18,14 - €18,14
€18,14
€18,14 - €18,14
€18,14

Sera Bio Nitrivec - filter media

First-class liquid filter media Biologically decomposes food remains, ammonia and nitrites Provides beneficial cleaning bacteria with a coloniza...

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€18,14 - €18,14
€18,14
€18,14 - €18,14
€18,14
Oase FilterAction Nitrate Remover - 120g
€28,55 - €28,55
€28,55
€28,55 - €28,55
€28,55

FilterAction Nitrate Remover - 120g

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the p...

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€28,55 - €28,55
€28,55
€28,55 - €28,55
€28,55
Sera Super Carbon - Disease Treatment - 1 kg – photo 2
Sera Super Carbon - Disease Treatment - 1 kg
€27,05 - €27,05
€27,05
€27,05 - €27,05
€27,05

Sera Super Carbon - Disease Treatment - 1 kg

Healthy Purity Removes residues after treatment - Eliminates harmful substances and discolorations - Phosphate-free - Long-lasting effectivenes...

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€27,05 - €27,05
€27,05
€27,05 - €27,05
€27,05
JBL Atvitol 50ml - Multivitamins to prevent deficiencies and strengthen the immune system – photo 2
JBL Atvitol 50ml - Multivitamins to prevent deficiencies and strengthen the immune system
€10,95 - €10,95
€10,95
€10,95 - €10,95
€10,95

JBL Atvitol 50ml - Multivitamins to prevent deficiencies and strengthen the immune system

Multivitamins to prevent deficiencies and strengthen the immune system of freshwater and saltwater fish. Healthy fish: a special lecithin emulsi...

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€10,95 - €10,95
€10,95
€10,95 - €10,95
€10,95
Sera Baktopur 50 ml - 500 to 1000 L - Water conditioner for bacterial infections – photo 2
Sera Baktopur 50 ml - 500 to 1000 L - Water conditioner for bacterial infections
€7,47 - €7,47
€7,47
€7,47 - €7,47
€7,47

Sera Baktopur 50 ml - 500 to 1000 L - Water conditioner for bacterial infections

Water conditioner against bacterial infections (e.g., mouth and fin rot) Has a disinfectant effect and promotes healing. Water conditioner for use ...

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€7,47 - €7,47
€7,47
€7,47 - €7,47
€7,47
Oase AquaElements vitamins and trace elements - 500ml
€21,95 - €21,95
€21,95
€21,95 - €21,95
€21,95

AquaElements vitamins and trace elements - 500ml

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the p...

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€21,95 - €21,95
€21,95
€21,95 - €21,95
€21,95
Oase AquaElements vitamins and trace elements - 250ml
€13,15 - €13,15
€13,15
€13,15 - €13,15
€13,15

AquaElements vitamins and trace elements - 250ml

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the p...

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€13,15 - €13,15
€13,15
€13,15 - €13,15
€13,15
Oase Vitamins and trace elements AquaElements - 100ml
€7,65 - €7,65
€7,65
€7,65 - €7,65
€7,65

Vitamins and trace elements AquaElements - 100ml

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the p...

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€7,65 - €7,65
€7,65
€7,65 - €7,65
€7,65
Oase FilterAction Nitrate Remover - 60g
€17,55 - €17,55
€17,55
€17,55 - €17,55
€17,55

FilterAction Nitrate Remover - 60g

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the ...

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€17,55 - €17,55
€17,55
€17,55 - €17,55
€17,55
Oase QuickfilterAction Phosphate Removal - 300g
€43,95 - €43,95
€43,95
€43,95 - €43,95
€43,95

QuickfilterAction Phosphate Removal - 300g

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the p...

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€43,95 - €43,95
€43,95
€43,95 - €43,95
€43,95
Oase QuickfilterAction Phosphate Removal - 150g
€25,25 - €25,25
€25,25
€25,25 - €25,25
€25,25

QuickfilterAction Phosphate Removal - 150g

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the ...

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€25,25 - €25,25
€25,25
€25,25 - €25,25
€25,25
Oase QuickfilterAction Phosphate Removal - 60g
€13,15 - €13,15
€13,15
€13,15 - €13,15
€13,15

QuickfilterAction Phosphate Removal - 60g

Oase

Our innovative AquariumActiv bacteria preparations offer increased safety and cause less stress for aquarium animals and plants. They ensure the p...

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€13,15 - €13,15
€13,15
€13,15 - €13,15
€13,15
Sera toxivec - Aquarium first aid - 250 ml – photo 2
Sera toxivec - Aquarium first aid - 250 ml
€12,86 - €12,86
€12,86
€12,86 - €12,86
€12,86

Sera toxivec - Aquarium first aid - 250 ml

First aid in the aquarium Immediately removes toxic ammonia and nitrites Binds harmful heavy metals, such as lead and copper Removes chlorine a...

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€12,86 - €12,86
€12,86
€12,86 - €12,86
€12,86
Sera Nitrite-less Serum - 0.5 L – photo 2
Sera Nitrite-less Serum - 0.5 L
€19,24 - €19,24
€19,24
€19,24 - €19,24
€19,24

Nitrite-less Serum - 0.5 L

Sera

Immediate nitrite aid Eliminates up to 1.5 mg/l of nitrites per dose Prevents a nitrite spike During the start-up phase of a new aquarium, th...

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€19,24 - €19,24
€19,24
€19,24 - €19,24
€19,24
Sera Bio Nitrivec - 0.5 L
€29,69 - €29,69
€29,69
€29,69 - €29,69
€29,69

Sera Bio Nitrivec - 0.5 L

Premium liquid filter media Biologically decomposes food remains, ammonia and nitrites Provides beneficial cleaning bacteria with a colonization...

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€29,69 - €29,69
€29,69
€29,69 - €29,69
€29,69
Tetra Phosphateminus 250ml - Reduction of the concentration of phosphates
€8,75 - €8,75
€8,75
€8,75 - €8,75
€8,75

Phosphateminus 250ml - Reduction of the concentration of phosphates

Tetra

Reduction of phosphate concentration Gentle and effective action Size: 250ml

€8,75 - €8,75
€8,75
€8,75 - €8,75
€8,75
Tetra Ph/kh plus 250ML - Eliminates cloudiness of aquarium water within hours
€10,07 - €10,07
€10,07
€10,07 - €10,07
€10,07

Ph/kh plus 250ML - Eliminates cloudiness of aquarium water within hours

Tetra

Eliminates clouding of aquarium water within hours Carefully selected minerals neutralize all kinds of dirt particles First visible results a...

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€10,07 - €10,07
€10,07
€10,07 - €10,07
€10,07
Tetra Nitrate minus 100ML - Naturally reduces nitrate content
€6,16 - €6,16
€6,16
€6,16 - €6,16
€6,16

Nitrate minus 100ML - Naturally reduces nitrate content

Tetra

The particles it contains activate microorganisms that feed on nitrates and break them down biologically. For better water quality For all fr...

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€6,16 - €6,16
€6,16
€6,16 - €6,16
€6,16