Seachem Flourish Nitrogen Plant Supplement – 500mL
Seachem Flourish Nitrogen is a concentrated nitrogen supplement for freshwater planted aquariums. Nitrogen is one of the three major macronutrients aquatic plants need for healthy growth, along with phosphorus and potassium.
Flourish Nitrogen provides nitrogen in both nitrate form and a plant-preferred ammonium form. The ammonium is complexed, so Seachem states that no free ammonia is released until it is utilized by plants. This makes it a helpful choice for planted tanks where nitrate levels are too low or plants are showing signs of nitrogen deficiency.
Key Features
- Concentrated nitrogen supplement for freshwater planted aquariums
- 15,000 mg/L blend of nitrogen sources
- Provides nitrogen in both nitrate and complexed ammonium forms
- Helps support healthy plant growth and coloration
- Useful for planted tanks with low nitrate levels
- Great for high-light, CO₂-injected, or heavily planted aquariums
- Can help address signs of nitrogen deficiency such as stunted growth or chlorosis
- Pairs well with Seachem Flourish Phosphorus and Flourish Potassium
Recommended Use
- Freshwater planted aquariums
- Low-nitrate planted tanks
- High-light aquascapes
- CO₂-injected planted tanks
- Heavily planted aquariums
- Aquariums showing signs of nitrogen deficiency
- Planted tanks where nitrate is quickly depleted
Directions
Shake well before use. Test nitrate levels regularly and dose according to plant demand.
- Beginner Dose: Use 2.5mL for each 40 US gallons twice a week, or as needed.
- Small Tank Dose: Each cap thread is approximately 1mL.
- Use As Needed: Dose in response to signs of nitrogen deficiency, such as stunted growth or chlorosis.
- Best Results: Use with balanced lighting, proper maintenance, and other macro nutrients when needed.
- Advanced Dosing: Dose based on Seachem’s formula if targeting a specific nitrogen increase.
Product Specifications
- Brand: Seachem
- Product: Flourish Nitrogen
- Size: 500mL / 17 fl oz
- UPC: 000116062305
- Water Type: Freshwater
- Use: Nitrogen supplement for freshwater planted aquariums
Frequently Asked Questions
What does Seachem Flourish Nitrogen do?
Flourish Nitrogen provides nitrogen for freshwater aquarium plants, helping support healthy growth, color, and overall plant development.
When should I use Flourish Nitrogen?
Use Flourish Nitrogen when nitrate levels are low or plants show signs of nitrogen deficiency, such as stunted growth, pale leaves, or chlorosis.
Is Flourish Nitrogen the same as Seachem Flourish?
No. Seachem Flourish is a comprehensive trace supplement, while Flourish Nitrogen is a targeted macronutrient supplement for planted aquariums.
Does Flourish Nitrogen contain ammonia?
Flourish Nitrogen provides nitrogen in nitrate and complexed ammonium forms. Seachem states that no free ammonia is released because the ammonium is complexed until used by plants.
How often should I dose Flourish Nitrogen?
The beginner dose is 2.5mL per 40 gallons twice weekly, or as needed based on plant growth and nitrate testing.
Can Flourish Nitrogen cause algae?
Any nutrient supplement can contribute to algae if overdosed or if lighting, CO₂, and maintenance are out of balance. Dose based on plant demand and test water regularly.
Can I use Flourish Nitrogen with Flourish Phosphorus and Potassium?
Yes. Seachem recommends using Flourish Nitrogen with Flourish Phosphorus and Flourish Potassium when a planted aquarium needs balanced macro nutrient support.
Is Flourish Nitrogen safe for shrimp?
Seachem states that Flourish Nitrogen is safe for invertebrates such as shrimp when used as directed. In shrimp tanks, dose carefully and monitor water parameters.
Important Note
This product is intended for ornamental freshwater aquarium use only. Keep out of reach of children. Not for human consumption. Always follow label directions and test nitrate regularly when dosing nitrogen supplements.
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