Seachem Flourish™ Nitrogen
Liquid nitrogen supplement for planted aquariums
Provides aquarium plants the macronutrient, nitrogen. Essential nutrient for aquarium plants showing nitrogen deficiency.
| Feature | Description |
|---|---|
| Form | Liquid |
| Active Nutrient | Nitrogen (in nitrate and ammonium forms) |
| Ammonia Release | Does not release ammonia |
| Volume | 500 ml |
| Application Range | Treats up to 10,000 gallons |
| Recommended Dosage (Beginner) | 2.5 mL (half a cap) for each 160 L (40 gallons) twice a week |
FAQ
Can this product be used in a fish-only aquarium?
No, this product is specifically formulated for planted aquariums and provides nitrogen to aquatic plants. It is not recommended for fish-only setups.
Does it affect water pH or hardness?
No, Seachem Flourish™ Nitrogen does not significantly affect pH or water hardness.
Is it safe for sensitive plant species?
Yes, it is safe for most sensitive plant species as it does not release ammonia and provides nitrogen in a plant-preferred form.

Owen Ferguson –
My planted tank was struggling with yellowing leaves. After using Flourish Nitrogen weekly, the plants started to grow stronger and greener. No ammonia smell or fish stress. Works well with my existing setup.
Lauren Mills –
I’ve used this for two months now and notice a clear improvement in plant health. The dosage is easy to follow and the liquid form mixes well into the water.
Dan Greene –
Great product for addressing nitrogen deficiency. My anubias and java ferns are thriving. No side effects on fish or water chemistry. Highly recommend for planted tanks.