API Leaf Zone – Essential Fertiliser for Freshwater Aquarium Plants
API Leaf Zone is a targeted liquid fertiliser for freshwater planted aquariums, designed to promote lush green growth, stronger leaves, and healthier plants. It supplies two of the most commonly depleted nutrients in aquariums — iron and potassium — making it ideal for tanks where plants look pale, yellow, or slow-growing.
Formulated by API, Leaf Zone is safe, simple to use, and perfect for both beginner and experienced aquarists.
What Does API Leaf Zone Do?
Leaf Zone focuses on leaf development and colour, helping plants photosynthesise efficiently and grow dense, vibrant foliage.
It is especially effective in aquariums where:
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Plants are yellowing or losing colour
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Leaf growth is weak or stunted
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Substrate nutrients are limited
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Fish load alone isn’t supplying enough nutrients
Key Features & Benefits
🌿 Iron for Rich Green Growth
Iron is essential for chlorophyll production, helping prevent yellowing and improving leaf colour.
⚡ Potassium for Stronger Plants
Supports cell function, leaf strength, and overall plant resilience.
🧪 Safe for Fish & Filtration
Will not harm fish, shrimp, or beneficial bacteria when used as directed.
🌱 Freshwater Planted Tank Essential
Ideal for low to medium-light planted aquariums and community tanks.
🔁 Easy Weekly Dosing
Simple liquid dosing makes regular plant care effortless.
Perfect For
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Beginner planted aquariums
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Community tanks with live plants
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Tanks using gravel or inert substrates
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Low-tech and low-light setups
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Supporting plant health alongside fish waste nutrients
Leaf Zone works exceptionally well when paired with good lighting and regular water changes.
Why Choose API Leaf Zone?
Not every planted tank needs complex fertiliser systems. Leaf Zone delivers exactly what most freshwater plants are missing, without overdosing or unnecessary complexity.
If your plants look tired, pale, or underwhelming — this is often the missing piece.
How to Use
Dose weekly as directed based on aquarium size. For best results:
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Maintain consistent lighting
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Perform regular water changes
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Trim dead or damaged leaves
