Sera pH / KH-Minus, 5L

Water Treatment

€ 74,99

(€ 15,00 / l, Price shown includes 20% VAT. - Excludes delivery costs)

Content: 5L

Delivery estimated by Friday, 21 June

In stock from June 20

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Features & Advantages

  • Effectively lowers pH and KH
  • Adjusts the carbonate hardness
  • Regulates the pH
  • For species-appropriate and slightly acidic water
  • Soft water like in the habitat
  • Precise lowering and regulation

Item no.: SER-3580, Content: 5 l, EAN: 4001942035804


Sera pH / KH-minus is a liquid water conditioner that lowers both the carbonate hardness and the pH value in the freshwater aquarium and is available in various containers.

The new aquarium care system from Sera solves all problems in the aquarium with just one product per step:
- With an improved active ingredient formula
- simple and effective application
- scientifically tested
- for optimal and comprehensive basic care
- for the creation and permanent maintenance of species-appropriate water conditions
- for immediate help in case of difficulties

Sera pH / KH-minus lowers the pH and the KH value in the freshwater aquarium, the carbonate hardness is adjusted and the pH value is regulated. This leads to species-appropriate and slightly acidic water, similar to the habitat of most ornamental fish.
Some types of fish, such as discus and scalars, are adapted to very soft water and require these conditions especially for reproduction. But even when other fish species are kept, the water may have too high a carbonate hardness (KH) or the pH value may have increased too much due to natural metabolic products. In such cases, sera pH / KH-minus helps quickly and effectively. The pH value and the carbonate hardness are precisely reduced and gently regulated. In this way, species-appropriate husbandry conditions are created that are conducive to the vitality and well-being of your fish.

To permanently maintain tropical soft water conditions, the KH should be set to 4 ° dKH with sera pH / KH-minus and then insert Sera super peat in the filter.

To reduce the KH by ° DKH, add 5 ml sera pH / KH-minus to 20 litres of water daily.

  • For lowering KH and pH
  • For immediate help with acute ammonia poisoning

To prepare the application of sera super peat

Repeat the dosage daily until the desired result. Do not use more than twice the dose per day as sudden changes in carbohydrates by more than two degrees are not tolerated by all fish. The water should be well aerated during use. The KH should not be reduced below 3 ° dKH, otherwise, there is a risk of an acid spike. The KH and pH should be measured before and after each application.

100 ml - 400 litres
250 ml - 1,000 litres
500 ml - 2,000 litres
2,500 ml - 10,000 litres
5,000 ml - 20,000 litres

Our expert Oliver Knott recommends:

With Sera pH / KH-minus you create optimal soft water conditions similar to the habitat of your well-kept fish!

Brands (Manufacturers): Sera
Hazard and precautionary statements

Signal word: Warning

Precautionary statements:

  • P101 - If medical advice is needed, have product container or label at hand.

Hazard statements:

  • H315 - Causes skin irritation
  • H319 - Causes serious eye irritation
  • H314 - Causes severe skin burns and eye damage.
  • H335 - May cause respiratory irritation

Customer Reviews

1 English review written for Sera pH / KH-Minus

1 customer review in all languages

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3 reviews
1 customer review in English
1 customer review in all languages

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