Potassium Nitrate (KNO3)
$4.00 - 100g
Enhance plant growth in your aquarium with Potassium Nitrate (KNO3). This essential fertiliser provides potassium and nitrate for healthy, vibrant plants and helps reduce algae growth, perfect for planted tanks and aquascaping.
Quantity | Price | Discount |
---|---|---|
1-4 | $4.00 | 0% |
5-9 | $3.80 | 5% |
10+ | $3.60 | 10% |
10 in stock
Potassium Nitrate (KNO3) – Premium Aquarium Fertiliser
Potassium Nitrate (KNO3) is an essential aquarium fertiliser that provides two key nutrients: potassium and nitrate. These nutrients are crucial for plant growth and overall aquarium health. Potassium supports vital cellular functions, while nitrate acts as an important source of nitrogen for plants. Whether you’re maintaining a planted aquarium or aquascaping, KNO3 helps your plants grow lush and vibrant, while also promoting overall aquarium balance.
Key Benefits:
- Supports Healthy Plant Growth: Potassium is vital for plant metabolism and disease resistance, while nitrate helps fuel protein production and healthy root systems.
- Promotes Lush, Vibrant Plants: The balanced nutrient supply encourages strong growth and rich, healthy plant colouration.
- Controls Algae Growth: By providing plants with the nutrients they need, Potassium Nitrate reduces the risk of unwanted algae blooms.
- Easy to Use: Simply dissolve the recommended dosage into your aquarium water for reliable and consistent results.
How to Use:
- Add Potassium Nitrate to your aquarium water, following the dosage guidelines based on your tank size and plant nutrient needs.
- Regular monitoring of water parameters is recommended to ensure a balanced nutrient environment and avoid over-fertilisation.
- Ideal for planted aquariums, aquascaping, and tanks with high plant nutrient demand.
Ideal For:
- Freshwater planted aquariums
- Aquascaping tanks
- Aquariums needing potassium and nitrogen supplementation
- High-demand planted tanks
Our Potassium Nitrate (KNO3) fertiliser is a high-quality, effective supplement that helps promote lush growth, vibrant colours, and overall aquarium health.



The shipping prices are determined by Australia Post, and we do not make any profit from postage fees. Any variation in price is solely due to packaging. Our aim is to offer you the most competitive rates for shipping your orders. At Green Aquarium, we strive to provide you with the best shipping options for your aquatic plants, fertilisers, shrimp, and fish. Please review the following information regarding our shipping and delivery services:
Shipping Options:
- Express Post: Recommended for purchasing plants, shrimp, and fish. Plants will be carefully packed in a small express post box, secured in a plastic bag with a small amount of water, and wrapped in bubble wrap for added protection.
- Styrofoam Box Express: Specifically for shipping live shrimp and fish. We use a sturdy Styrofoam box and send it via express post to ensure the safety and well-being of your aquatic pets during transit.
- Registered Post for Fertilisers: Suitable for shipping fertilisers. Your order will be sent via registered post, providing a secure and reliable delivery option.
- Express Post for Fertilisers: If you prefer faster delivery for your fertilisers, we offer express post services.
Please Note: The prices for shipping are set by Australia Post, and we do not make any profit from postage fees. Any difference in price would be due to packaging. We strive to provide you with the best available rates for shipping your orders.
Shipping within Australia: We currently offer shipping services within Australia only. We apologise for any inconvenience caused and appreciate your understanding.
Local Delivery: If you're in the vicinity or would like to avoid shipping fees, we invite you to select the local delivery option at checkout. Before placing your order, please contact us via email, SMS, or phone call to confirm if this option is available for your area. Additionally, reach out to us to schedule a specific time and date for the delivery. Opting for local delivery is an excellent way to reduce shipping expenses.
Pick-Up Option: If you're located nearby or prefer to save on shipping costs, we welcome you to choose the pick-up option during the checkout process. Our address for pick-up will be provided upon completion of your order. Opting for pick-up is a great way to save on shipping expenses.
Shipping Address Requirements: Please note that we do not ship to PO Boxes. Kindly provide a valid residential or commercial address during the checkout process to ensure successful delivery.
If you have any questions or require further assistance regarding our shipping and delivery services, please don't hesitate to contact our customer support team. We are here to help you with any queries you may have.
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