Flourish Nitrogen 250ml

Flourish Nitrogen is a liquid nitrogen fertilizer for planted aquariums. It is intended for aquarists who see yellowing (chlorosis) or stunted growth in their plants and need to add nitrogen without adding phosphorus.

Why it matters

• No free ammonia release: the ammonium in the formula is bound and only released inside plant cells, so no free ammonia is produced during use.
• Two nitrogen forms: half of the nitrogen is in nitrate form, which plants that can use nitrate will take up directly.
• Predictable effect on nitrate testing: one starter dose raises nitrogen by the same amount as a 1 mg/l nitrate solution, and nitrate test results can be doubled to estimate total nitrogen.
• Phosphorus-free: the product adds nitrogen and potassium only, so phosphorus levels remain unchanged.

Specifications

• Brand: Seachem
• Product: Flourish Nitrogen, 250 ml
• Total nitrogen: 1.5%
• Soluble potassium oxide (K2O): 2%
• Phosphorus: none
• Starter dose: 2.5 ml (half cap) per 160 litres of water, twice a week or as needed when nitrogen deficiency symptoms appear
• Advanced dosing: higher doses in proportion, calculated with the formula 0.06 × V × n = m (V = tank volume in litres, n = planned increase in nitrogen level, m = volume of Flourish Nitrogen)
• Weight: 0.25 kg
• EAN: 000116062602

What it works with

The product is designed for planted freshwater aquariums where nitrogen is the limiting nutrient. Dosing is calculated from tank volume, so the starter dose scales with the water in the tank. Higher doses for faster growth follow the proportional formula given above, and nitrate test results serve as a guide to the nitrogen level.