Tetra Nitrate Minus Pearls, 250 ml

Nitrate lowering


(£92.00 / l, Price shown includes 20% VAT. - Excludes delivery costs)

Content: 250 ml

Delivery by Thursday, 25 April if you order by Thursday at 00:00.

Only 3 items in stock

Free shipping to Great Britain from £59.90.
More information regarding shipping & delivery

Features & Advantages

  • To permanently reduce the nitrate content when setting up the aquarium
  • Important algae nutrient is withdrawn and water quality is improved in the long term
  • Purely biological nitrate reduction for 12 months
  • Long-term improvement in water quality
  • Algae growth is restricted
  • Easy application by incorporation into the substrate

Item no.: TET-189188, Content: 250 ml, EAN: 4004218189188


Tetra NitrateMinus Pearls is a granulate for the substrate that serves to permanently reduce the nitrate content in newly installed freshwater and saltwater aquariums.

The water is not clarified mechanically by a filter system alone. Special bacteria are required for the conversion of ammonia to nitrate, which find a large space in a sufficiently dimensioned filter system. With the use of Tetra SafeStart, the aquarist creates optimal conditions for good bioactivity in the aquarium. A widespread opinion that predominantly the bacteria of the Nitrobacter group are active as nitrifying bacteria in the aquarium has been scientifically refuted. In natural biofilms from aquariums, Tetra Research was able to identify the bacteria of the Nitrospira strain as the predominant representative of the nitrite-reducing bacteria. The ammonia, which is also very harmful to the fish, is broken down by bacteria of the genera Nitrospira and Nitrosomonas. The latest discoveries in microbiology ultimately led to SafeStart's product development. Optimal conditions for the settlement of these important bacteria are achieved with Tetra Bactozyme. It covers all surfaces with a bacteria-promoting biofilm on which nitrifying bacteria can develop. Tetra Biocoryn complements these products.

Tetra NitrateMinus Pearls is used to permanently reduce the nitrate content in newly set up fresh and saltwater aquariums. The granulate visually blends in with the substrate and is continuously broken down by bacteria; it guarantees a purely biological nitrate reduction for up to 12 months, which leads to an improvement in water quality in the long term. Algae growth is significantly restricted by the deprivation of nutrients. Depending on the aquarium conditions, the nitrate content can be reduced by 40-50 mg / l. Tetra NitrateMinus should be re-dosed every 12 months, in addition, a double dosing is possible at any time to strengthen the mode of action.

Tetra NitrateMinus Pearls is worked into the substrate in accordance with the enclosed operating instructions. A replenishment of up to double the amount is possible at any time. Regular monitoring of the nitrate content with e.g. The Tetra Nitrate Test is recommended.

Oliver Knott recommends:

With Tetra NitrateMinus Pearls, nitrates can be reduced and checked in newly installed freshwater and saltwater aquariums for up to 12 months.

Brands (Manufacturers): Tetra

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