Tetra Nitrate Minus, 250 ml

Water Treatment

€ 7,49 € 9,99 -25%

(€ 29,96 / l, Price shown includes 20% VAT. - Excludes delivery costs)

Content: 250 ml

Delivery by Monday, 17 June if you order today by 13:00.

Only 8 items in stock

Free shipping to Austria from € 49,90.
More information regarding shipping & delivery

Features & Advantages

  • For permanent reduction of the nitrate content and for biocide-free algae control
  • Purely biological nitrate reduction and thus a long-term improvement in water quality
  • Algae growth is significantly restricted because algae is removed from the main source of food
  • Permanent reduction of the nitrate value below 40 to 50 mg / l
  • Simple replenishment
  • Easy dosing thanks to the liquid form
  • For fresh and saltwater

Item no.: TET-147737, Content: 250 ml, EAN: 4004218147737


Tetra NitrateMinus is used to permanently reduce the nitrate content and biocide-free algae control in fresh 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 is used for the permanent reduction of the nitrate content and the biocide-free algae control in liquid form. Tetra NitrateMinus serves the purely biological nitrate reduction and thus a long-term improvement in water quality. Algae growth is significantly restricted because the main food source is removed from the algae. Depending on the aquarium conditions, a permanent reduction in nitrate under 40-50 mg / l aquarium water is achieved. Thanks to its liquid form, Tetra NitrateMinus is easier to dose and easier to add.

Shake well before use. Add 2.5 ml weekly to 10 l aquarium water. The visible active ingredient granulate is distributed in the aquarium and slowly sinks to the bottom. Tetra NitrateMinus is absolutely harmless to the aquarium inhabitants and plants. To check the nitrate value (NO3) in the aquarium, e.g. the Tetra Test 6-in-1 or the Tetra Test NO3- can be used. If the nitrate level is too high, Tetra NitrateMinus should be used.

Oliver Knott recommends:

With Tetra NitrateMinus, the nitrate content in the aquarium can be adjusted quickly and easily, so that algae are deprived of the basis and thus prevented from growing.

Brands (Manufacturers): Tetra

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