API Leaf Zone Fertilizer – 473ml

API Leaf Zone Fertilizer – 473ml – Advanced Iron & Potassium Supplement for Planted Aquariums

API Leaf Zone Fertilizer – 473ml is a scientifically formulated liquid fertilizer designed to maintain healthy, vibrant freshwater aquarium plants. In closed aquatic systems, essential nutrients such as iron and potassium become depleted over time due to plant uptake and filtration processes. Without regular supplementation, plants may develop pale leaves, yellowing (chlorosis), weak stems, and slow growth. API Leaf Zone replenishes these critical nutrients to promote lush, thriving aquatic vegetation.

This formula contains chelated iron, ensuring efficient absorption and improved bioavailability for aquatic plants. Iron plays a crucial role in chlorophyll production, helping plants maintain rich green coloration. Potassium supports cellular functions, nutrient transport, and overall structural strength. Because the formula does not contain phosphates or nitrates, it nourishes plants without directly increasing algae-promoting nutrients when used as directed.

API Leaf Zone is especially effective in aquariums with inert substrates such as gravel or sand, where root-based nutrients may be limited. It is suitable for stem plants, rosette plants, carpeting plants, and floating varieties that primarily absorb nutrients through their leaves. For high-tech planted tanks with CO2 injection and strong lighting, this fertilizer acts as a foundational micronutrient supplement within a complete fertilization routine.

Specifications

• Product Name: API Leaf Zone Fertilizer – 473ml
• Brand: API
• Volume: 473 ml (16 fl oz)
• Type: Liquid freshwater plant fertilizer
• Key Nutrients: Chelated Iron (Fe), Potassium (K)
• Phosphate: 0%
• Nitrate: 0%
• Suitable For: Freshwater planted aquariums
• Dosage: Add 5 ml per 38 litres (10 US gallons) once weekly

How to Use This Aquarium Plant Fertilizer

1. Shake the bottle thoroughly before each use.
2. Measure 5 ml for every 38 litres (10 US gallons) of aquarium water.
3. Add directly to the aquarium in an area with good water circulation.
4. Use once weekly as part of your regular maintenance routine.
5. For heavily planted tanks, monitor plant response and adjust supplementation if necessary.

Care & Maintenance Tips

• Combine with adequate lighting and optional CO2 injection for optimal plant growth.
• Perform regular water changes to maintain nutrient balance.
• Trim dead or yellowing leaves to encourage new growth.
• Monitor iron levels in high-demand aquascapes.
• Store tightly sealed in a cool, dry place away from sunlight.