Seachem Flourish Iron 100ml – Iron Supplement for Aquatic Plants
Flourish Iron 100ml is a highly concentrated ferrous gluconate (Fe+2) solution, specially formulated to provide optimal iron levels in planted aquariums. This supplement is ideal when iron requirements exceed the levels provided by Flourish™ or when visible deficiencies appear, such as chlorosis (yellowing leaves), weak stems, and stunted growth.
Unlike other iron sources that use EDTA (ferric iron Fe+3), Flourish Iron delivers ferrous iron (Fe+2), the form preferred by aquatic plants. This allows for immediate absorption without additional metabolic energy expenditure, promoting healthy plant growth and enhancing vibrant leaf colors.
Key Features:
- Highly concentrated iron supplement: 10,000 mg/L of easily absorbed Fe+2.
- Prevents and corrects iron deficiencies, ensuring strong, healthy plant growth.
- Highly bioavailable form of iron: no need for plants to convert Fe+3 to Fe+2.
- Free from phosphates and nitrates, preventing algae issues.
- Ideal for planted tanks and fully compatible with other Seachem fertilizers like Flourish™ and Flourish Tabs™.
- Enhances plant coloration, making greens more intense and promoting rich reds in species like Rotala, Alternanthera, Ludwigia, and Ammannia.
Why is iron important in aquariums?
Iron is a vital nutrient for photosynthesis and chlorophyll production, essential for plant metabolism. Iron deficiency can cause interveinal chlorosis (yellowing between leaf veins), stunted growth, and poor pigmentation in red plants. Regular use of Flourish Iron ensures lush vegetation, vibrant colors, and optimal plant health.
Dosage & Instructions:
- Recommended dose: add 5 ml (one capful) per 200 liters of water.
- Monitoring: use MultiTest Iron™ to maintain iron levels at 0.10 mg/L.
- Dosing frequency: adjust based on plant growth or deficiency signs.
- For small tanks: each cap marking equals 1 ml.
Signs of Iron Deficiency in Aquatic Plants:
- Interveinal chlorosis: leaves turn yellow while veins remain green.
- Stunted growth and deformed stems.
- Lack of vibrant red pigmentation in certain species.
Best Combinations for Optimal Plant Growth:
For a complete fertilization routine, use Flourish Iron™ alongside:
- Flourish™ (macro and micronutrients)
- Flourish Excel™ (liquid organic carbon)
- Flourish Trace™ (trace elements)
- Flourish Potassium™ (essential potassium)
- Flourish Phosphorus™ & Flourish Nitrogen™ (for low-nutrient aquariums)
Ideal for:
- Planted freshwater aquariums.
- High-demand plants like Alternanthera, Rotala, Ludwigia, Ammannia, and Echinodorus.
- Low-tech and high-tech CO₂ aquariums.
- Correcting iron deficiencies and enhancing plant colors.
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