Seachem Flourish Phosphorus 250mL
Seachem Flourish Phosphorus 250mL provides a concentrated source of phosphate (PO₄), one of the three primary macronutrients required for strong plant growth. In heavily planted, lightly stocked, or high-tech CO₂ aquariums, phosphate can quickly become depleted — restricting growth even when other nutrients are available.
Balanced phosphate levels are essential for energy transfer within plants, root development, and overall metabolic function.
What It Helps Fix
- Slow or stalled growth
- Dark, dull or patchy leaves
- Weak root development
- Plants failing to thrive in high light setups
- Imbalance between nitrate and phosphate levels
Key Features
| Component | Value |
|---|---|
| Phosphate Content | 100 mg/L |
| Volume | 250 mL |
| Form | Clear liquid |
| Application | Directly added to aquarium water |
FAQ
How often should I add Seachem Flourish Phosphorus to my aquarium?
Add according to your plant density and water parameters. A general guideline is every 1-2 weeks, but adjust based on test results and visible plant growth.
Can I use Flourish Phosphorus with other Seachem nutrient products?
Yes, it is designed to work alongside other Seachem nutrients like Flourish Iron and Flourish Potassium for balanced plant nutrition.
Is Flourish Phosphorus safe for fish and invertebrates?
Yes, it is safe for fish and invertebrates when used as directed. Phosphate levels are carefully balanced to avoid toxicity.
Nicola Rampling –
My planted tank has been struggling with dull leaves and slow growth. After adding Flourish Phosphorus every two weeks, the plants have become vibrant and fuller. The color improvement is noticeable within a few weeks. Easy to use and effective.
Nicholas Dowd –
I’ve used this product in a high-light setup with CO₂ injection. It helped fix the patchy leaves and improved root development. I still monitor phosphate levels regularly to avoid excess.
Gavin Abraham –
Great product for maintaining balanced nutrients. My anubias and java ferns are now thriving. No fish issues, and the liquid mixes well with the water.
Sean Coleman –
It works, but I found it necessary to test phosphate levels before each addition. The improvement is steady, but not dramatic. Best used with other nutrients for full effect.