Description
Seachem Flourish Phosphorus 2L — Bulk Liquid Phosphate Fertiliser for Plants In Commercial & Multi-Tank Facilities
Seachem Flourish Phosphorus 2L (SKU: 724979-198) provides a bulk supply of concentrated potassium phosphate designed for maintenance professionals, commercial hatcheries, public displays, and high-volume plant propagators. Phosphorus is vital for energy metabolism and structural development in aquatic plants. This large-format container ensures consistent macronutrient availability, allowing for automated dosing systems or manual maintenance across multiple systems. Seachem Flourish Phosphorus 2L pack is a large-size bottle with a concentrated liquid supplement designed to provide phosphate (PO₄³⁻), an essential macronutrient for healthy aquatic plant growth.
By separating phosphorus from nitrogen, this macro-supplement prevents forced nitrate loading, enabling precise chemical tuning in high-tech plant displays. Proper phosphate management promotes rapid leaf multiplication, rich colour expression, and robust stem integrity while controlling nuisance algae growth.
Usage & Application
When to Use
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Commercial & Multi-Tank Use: Tailored for facility maintenance routes, plant farming setups, and large aquascapes.
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Automated Dosing: Ideal for filling auto-dosing reservoirs in high-tech freshwater installations.
Dosing & Application Guide
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Dose 2.5 mL for every 80 L (20 US gallons) once or twice weekly into a high-flow filtration area.
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It’s always good to regularly test phosphate levels and then decide dosing accordingly to maintain stable phosphate levels within the range of 0.2 to 1.5 mg/L. It is Safe to use with other Seachem Flourish fertilisers;
- Dosage frequency & quantity can be decided based on plant growth and nutrient demand. It gives the best results if used alongside Flourish Potassium and Flourish Nitrogen.
Product Specifications & Highlights
Key Features
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Maximum Economy Size: 2-Liter container dramatically reduces per-dose maintenance costs.
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Pure Potassium Phosphate: Concentrated at 4,500 mg/L phosphate for targeted dosing.
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Protects Plant Health: Eliminates leaf stunting and root decay associated with phosphorus deficiency.
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Fully Bio-Available: Instantly accessible to both root-feeding and stem-feeding aquatic species.
Product Details
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Brand: Seachem
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SKU: 724979-198 (Internal ID: 130725)
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Barcode (GTIN/UPC): 000116019804
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Product Type: Aquarium Plant Fertiliser > Liquid Additive
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Package Dimensions: 135 mm (L) × 135 mm (W) × 260 mm (H)
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Gross Package Weight: 2,200 g
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Net Volume: 2,000 mL (2 Litres / 0.53 US gal)
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Target Environment: Large Aquariums, Commercial Facilities & Multi-Tank Setups
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Treatment Capacity: 2 L treats up to 64,000 Liters (16,000 US gallons)


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