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MasterLine II

MasterLine II

  • Macronutrient allround fertiliser
  • Contains nitrogen, phosphorus, potassium and magnesium
  • Daily or weekly dosing
  • Recommended use with MasterLine I and MasterLine Carbo
  • Available in 500 ml and 1000 ml
In stock, only 17 left
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€ 27.80 / l
incl. 16% VAT
plus € 4.90 Shipping
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MasterLine II is a concentrated macronutrient fertiliser for aquatic plants. It contains nitrogen, phosphorus, potassium and magnesium. It is recommended to use MasterLine II together with MasterLine I and MasterLine Carbo. In this way the aquatic plants have all the nutrients necessary for healthy growth. MasterLine II offers the possiblity of dosing on a weekly basis.


  • Available in 500 ml and 1000 ml bottles
  • Contains nitrogen, phosphorus, potassium and magnesium
  • The full macronutrient supply
  • Daily or weekly dosage
  • Suppresses GSA, BGA and staghorn algae


Daily dosage
Lots of light (>0.5 Watt per litre) + CO2 1 ml per 30 litres*
Little light (<0.5 Watt per litre) + CO2 1 ml per 50 litres*
Weekly dosage
Lots of light (>0.5 Watt per litre) + CO2 7 ml per 30 litres*
Little light (<0.5 Watt per litre) + CO2 7 ml per 50 litres*

(*1 ml per 30 litres = 1.20 mg/l NO3, 0.2 mg/l PO4, 1.6 mg/l K, 0.12 mg/l Mg)

The recommended dosage is only a guideline. Depending on the aquarium, the dosage of the fertiliser can be reduced or increased to achieve optimum results.


Use in combination with activated carbon or UV lamps is not recommended, as the use of these substrates or tech can alter the nutrient properties. Shake bottle well before use. Store in a cool place without direct sunlight.


General information

Item no.
EAN 9355478926163
Weight 0,60 kg
Shipping weight 1,00 kg

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roland k.
Must have
20th August
MasterLine - II - 500 ml
MasterLine - II - 500 ml

Sensational fertilizers!Even difficult to grow plants grow healthily and beautifully.A fertilizer worth its price in 100 percent,Ludwigia pantanal and eriocaulon love it for me. (read more)