Aqua Rebell Makro Basic NPK

Aqua Rebell Makro Basic NPK

  • Contains the macronutrients nitrate, phosphate and potassium
  • Designed for limiting phosphate
  • Perfect for closing nutrient gaps
  • Great choice 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 NPK adds the most important macronutrients of nitrogen, phosphate and potassium to your tank. Your plants can draw on plentiful resources again and will thank you with lush growth.

Weekly water changes of 25% to 50% are recommendable. The dosage can be raised or lowered depending on your requirements. If your tank water shows high readings of nitrate and/or phosphate from the start, this fertilizer is not suitable for your aquarium, though. It has been designed to prevent the accumulation of large concentrations of macronutrients. If high levels of nitrate and/or phosphate occur, please reduce the dosage.

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). Our waterplant fertilizer Aqua Rebell Makro Basic NPK adds nitrogen, phosphate, potassium and magnesium and thus covers all the essential macronutrients, providing your plants with the prerequsites for lush growth. This fertilizer has been designed to prevent the accumulation of large concentrations of macronutrients, as a rule, however, the daily dosage should just cover the daily amount the waterplants use. Our dosage suggestion is a good basis for determining the individual dosage in your tank. Especially when it comes to the fertilization with macronutrients, the user has to show some intiative and find out the suitable dosage as the supply of macronutrients depends a lot on the conditions in an individual tank - the number and kind of fish and the amounts of food they get.

When using this fertilizer, please keep in mind that besides NPK, a good micronutrient fertilizer is required (complete iron fertilizer).

Fertilizer diagram

Overview Aqua Rebell fertilizer


  • Comes in packages with a volume of 500 ml, 1.000 ml and 5.000 ml


Dosage per 50 litres
Lots of light (>0.5 Watt per litre) + CO2 2 ml per day
Little light (<0.5 Watt per litre) + CO2 0.5 ml per day
No CO2 supply 2-4 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.

2 ml Makro Basic NPK per 50 litres of tank water add the following nutrients:
NO3 1.00 mg/l
PO4 0.10 mg/l
K 1.30 mg/l
Mg 0.10 mg/l


NPK-fertilizer - solution - 0,53+0,18+3,68
0,53% N total nitrogen (0,53 % nitrate nitrogen); 0,18% P2O5 water-soluble phosphate; 3,68% K2O water-soluble potassium oxide.
Net mass: 531 g (500 ml). Distributor: Aquasabi GmbH & Co. KG, D-38126 Braunschweig, Germany.

Minor components: 0,91% S water-soluble sulfur; 0,39% 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 4.8 out of 5 stars
211 Reviews
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5 Stars(181)
4 Stars(22)
3 Stars(6)
2 Stars(2)
1 Star(0)
Barbin B.
Easy dosing
19th February 2018
Aqua Rebell - Makro Basic - NPK - 500 ml
Aqua Rebell - Makro Basic - NPK - 500 ml

Good price for this Makro Basic NPK with a perfect nutrients dosing. Contains magnesium too. I add weekly in my tank.

Laurence A.
7th December 2016
Aqua Rebell - Makro Basic - NPK - 500 ml
Aqua Rebell - Makro Basic - NPK - 500 ml

Excellent quality liquid fertilizer. Started using this product about an year now and don't think changing. Plants looking great and full of colour.

Vincent V.
beautiful plants
28th April 2015
Aqua Rebell - Makro Basic - NPK - 5.000 ml
Aqua Rebell - Makro Basic - NPK - 5.000 ml

Aqua Rebell Makro Basic NPK is perfect for use with a dosing pump. Aqua Rebell Makro Basic NPK is safe for shrimp in a well planted aquarium.

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