Aqua Rebell Makro Basic Estimative Index

Aqua Rebell Makro Basic Estimative Index

  • Contains the macronutrients nitrate, phosphate and potassium
  • For lush unlimited aquatic plant growth
  • Perfect for aquascaping
  • Suitable for batch fertilisation

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In a strongly lit well-planted tank or in aquariums with few fish a lack of macronutrients may occur, which in turn can lead to poor plant growth. Makro Basic Estimative Index adds the most important macronutrients of nitrogen, phosphate and potassium to the aquarium. The plants can once again access plentiful resources, resulting in lush growth as an expression of gratitude.

A 50 % water change per week is obligatory in order to prevent macronutrients from accumulating in the tank. The fertilizer dosage may be raised or lowered according to the requirements of the aquarium. A supply of CO2 with about 30 mg/l should be present, and the addition of 0.5 - 1 ml of Mikro Basic Eisenvolldünger or Micro Special Flowgrow per 40 litres of tank water per day should be considered in order to provide sufficient amounts of micronutrients for the plants.

The basic supply of macronutrients in a tank is provided either by our NPK fertilizer, our Estimative Index fertilizer or by our single-nutrient fertilizers (Makro Basic Nitrat, Phosphat and Kalium/potassium). Our waterplant fertilizer Aqua Rebell Makro Basic Estimative Index adds nitrogen, phosphate, potassium and magnesium and thus covers all essential macronutrients, providing the plants with the prerequsites for lush growth. This fertilizer is based on the fertilizing system of the same name and has been designed to supply the waterplants with all the nutrients they need.

When using this fertilizer, besides the Estimative Index, also a good micronutrient fertilizer is required (complete iron fertilizer).

Fertelizer diagram

Overview Aqua Rebell fertilizer


  • Available in 500 ml, 1,000 ml and 5,000 ml


Dosage per 40 litres
Lots of light (>0.5 Watt per litre) + CO2 5 ml per day
Little light (<0.5 Watt per litre) + CO2 0.5-2 ml per day
No CO2 supply 1-2 ml per week

This dosage suggestion is just a guideline. The dosage may have to be raised or lowered depending on the conditions in your tank in order to give you good results.

1 ml Makro Basic Estimative Index per 40 litres of tank water adds the following nutrients:
NO3 0.92 mg/l
PO4 0.17 mg/l
K 0.70 mg/l
Mg 0.025 mg/l


NPK-fertilizer - solution - 0,79+0,50+3,22
0,79 % N total nitrogen (0,79 % nitrate nitrogen); 0,50 % P2O5 water-soluble phosphate; 3,22 % K2O water-soluble potassium oxide.
Net mass: 524 g (500 ml). Distributor: Aquasabi GmbH & Co. KG, D-38126 Braunschweig, Germany.

Minor components: 0,20 % S water-soluble sulfur; 0,16 % MgO water-soluble magnesium oxide. Conditioning agents: Methylparaben. Storage: Store at room temperature. Protect from frost and heat. Store out of reach of children and pets. Use: For fertilisation of ornamental plants in aquariums only. Readyto-use fertilizer solution. See pack for detailed dosage recommendations.
Note: Offical guidance recommendations take precedence.

Aqua Rebell

Aqua Rebell

Aqua Rebell is our own aquatic plant fertiliser label. A great number of planted tank enthusiasts in general and aquascapers in particular use our products to supply their aquarium plants with nutrients.

When developing fertilisers and other aquascaping-related products, we work hand in hand with a base of aquarium enthusiasts and aquascapers, and we try to realise as many of their desires and ideas as possible. Quite often, ideas and wishes uttered in our aquatic plant lovers' and aquascapers' community are the basis, on which we develop new products. These are then thoroughly tested by experienced aquarium keepers and aquascapers. Behind our product range, there are a lot of innovative ideas and long-term experience, and they are tested in real life. For us it is important that aquarium keepers and aquascapers are successful with our products and that they are thus enabled to make the utmost of their tanks and aquascapes.

General information

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Customer reviews

This item has been rated 4.9 out of 5 stars
84 Reviews
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5 Stars(79)
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1 Star(0)
Tarik D.
Good stuff
10th August 2015
Aqua Rebell - Makro Basic - Estimative Index - 500 ml
Aqua Rebell - Makro Basic - Estimative Index - 500 ml

I've been using this along with Mikro Spezial and have been very impressed with the results, plants love it and so do I. Highly recommended !

Best macro fert.
6th March 2016
Aqua Rebell - Makro Basic - Estimative Index - 1.000 ml
Aqua Rebell - Makro Basic - Estimative Index - 1.000 ml

Strong fertilizer, supplies all kind of macro nutrients.very easy to dose with Aqua Rebell Dosing pump 1 ml.I have no algae issues.

Bernhard F.
Praxisgerechte Makrodüngung
24th January 2015
Aqua Rebell - Makro Basic - Estimative Index - 1.000 ml
Aqua Rebell - Makro Basic - Estimative Index - 1.000 ml

Wer will schon ewig Wasserwerte messen? Gerade die NO3- und PO4-Tests sind recht aufwendig, K aquaristisch quasi nicht messbar. (read more)

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