Potassium Nitrate KNO3

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    Potassium Nitrate KNO3

    By simply dosing a pure KNO3 Potassium Nitrate, the dry material assists the plants with important Potassium [k] and Nitrogen [n] requirements. The nutrients contained in Potassium Nitrate, are vital in fertilising green leafy aquarium plants, maintaining a healthy growth, promoting protein formation and they assist with the efficiency of the use of water – ensuring the plants stay healthy and grow as they would in a natural environment. Nitrogen [n] is the first of three major nutrients that are essential to a plants survival and wellbeing. Combined with phosphorus [p] and potassium [k], these three nutrients are known as the 'macronutrients'. These nutrients are needed in large quantities for plants to flourish. Plants require nitrogen to construct biopolymers and proteins. Nitrogen is also an important component of chlorophyll, and is critical to a plant's ability to absorb and convert light energy. Use of the nutrients will also help to avoid green algae problems within the aquarium. The macro nutrients contained in KNO3 are crucial for survival and the dry mixture is dosed lightly, according to the amount of water the tank holds. Offering the benefits of its Nitrate content as well as a source of Potassium, KNO3 is a valuable nutrient for healthy aquatic systems. Dosing with dry nutritional fertilisers is more cost effective than purchasing a separate liquid fertiliser, yet dry nutrients and liquid fertilisers can also be used alongside one another.

    Please note; Potassium Nitrate is controlled under the Poisons Act 1972. We are under obligation to report any transaction involving this product that appears suspicious.

    Formula: KNOPotassium Nitrate (KNO3) contains 13.9% nitrogen (N) and 38.7% potassium (K)

    Appearance: White fine powder

    Storage: Store in a cool, dark place

    Packaging: Potassium Nitrate is supplied in re-sealable packaging.

    Dosing: Our recommended stock solution;

    4 tsp. Potassium Nitrate

    500 ml Water

    Dose 10 ml per 50 litres of aquarium water 3x a week.

    Please note; no chemicals or fish foods can be sent outside of the EU, any orders from outside of the EU will be cancelled.

    Dosing bottles, along with additional nutrients and plant fertilisers, are available in our online shop, click here

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    We aim to ship orders within 1-3 working days. Sometimes delays will occur because of national holidays etc., we will always ship as soon as we possibly can.

    Standard Shipping:

    All orders up to 2kg will be sent with Royal Mail (1st Class) Signed For service.

    All order over 2kg will be sent via a courier, sometimes depending on the makeup of the order, we will split into 2 parcels and ship via Royal Mail.


    UK up to 1000g £3.99

    UK up to 2000g £6.99

    UK up to 5000g £9.99 

    EU up to 1000g £7.85

    EU up to 2000g £13.85

    EU over 2000g (variable, dependent on location, in some cases it may be cheaper to split the parcels down to under 2000g and have 2/3 parcels instead)

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    If you need to change your delivery address please contact us as soon as possible stating your order number. If your order has not yet been dispatched your item may be sent to this new address at no extra charge.

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