MasterLine Potassium Liquid Fertilizer 500ml

$18.95

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or $4.73 /wk with Afterpay

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Size

500ml

Quantity

Delivery times may vary depending on your location, carrier selection, and order type. We work closely with Australia Post and Sendle to ensure timely and reliable delivery across Australia. Tracking details are provided once your order has been dispatched.

For shipping inquiries, please e-mail sales@schoolofscape.com.au.

MasterLine Potassium — Pure Potassium Liquid Fertilizer

Dial in your potassium levels with precision. MasterLine Potassium is a targeted liquid fertilizer based purely on Potassium (K), allowing you to raise K independently without introducing unwanted nitrates or phosphates into your aquarium.

Key Features

Pure potassium (K) — no nitrates, phosphates, or other elements added
Activates plant enzymes — potassium is essential for metabolic processes and overall plant health
Precision supplementation — ideal for fine-tuning alongside other individual nutrients or all-in-one formulas
Prevents deficiency — addresses yellowing leaf edges, holes in leaves, and poor growth
500ml — concentrated formula for long-lasting use

Whether you're running an Estimative Index or a custom dosing regime, MasterLine Potassium gives you clean, isolated control over one of the most critical plant macronutrients.

Provides a stable source of Potassium (3% K) with no added nitrates or phosphates.
Addresses potassium deficiencies that can lead to deteriorating or falling older leaves.
Offers supreme control over nutrient concentrations when used with other individual MasterLine products.
Compatible with all forms of aquatic life, including shrimp.
Suitable for both daily and weekly dosing schedules.
Includes a graduated measuring cup for precise application.

FAQs

School of Scape is a unique aquarium store that draws inspiration from nature to help you create beautiful and distinctive aquascapes. We provide all the necessary information and quality supplies you need to bring your aquascaping visions to life.

We offer a wide range of quality, affordable aquarium supplies that we use ourselves, including plants, substrates, filtration systems, lighting, and other essential aquascaping equipment. Additionally, we provide expert installation and custom aquascape design services, drawing on our extensive international experience and knowledge in competitive aquascaping.

Getting started with aquascaping involves understanding the basics of aquarium setup, choosing the right plants and equipment, and learning about the necessary maintenance. We offer comprehensive guides and expert advice to help you every step of the way, from initial setup to ongoing care.

Yes, we provide professional installation services to ensure your aquascape is set up correctly and efficiently. Our team of experts will work with you to design and build a custom aquascape that meets your specific needs and preferences.

We only offer aquarium supplies that we personally use and trust. This ensures that every product we sell is of the highest quality and proven to work effectively in creating and maintaining beautiful aquascapes. Our commitment to quality and affordability means you can confidently move from inspiration to realization.

Yes, we offer workshops and classes for all skill levels, from beginners to advanced aquascapers. These sessions cover various aspects of aquascaping, including design principles, plant care, and maintenance techniques, providing you with the skills and knowledge needed to create stunning aquascapes.

You can contact us through our website, email, or by visiting our store. Our friendly and knowledgeable staff are always ready to assist you with any questions or concerns you may have.