Sera Florena

Liquid Iron Fertilizer for Lush Aquarium Plants — Directly Absorbed Through Leaves

Sera Florena — Basic Plant Nutrition with Iron, Minerals, and Trace Elements

✅ Level: Easy — Simply dose. No special knowledge required.

Sera Florena is a high-quality liquid plant fertilizer specifically developed for aquarium plants that absorb nutrients through their leaves. Rich in divalent iron (Fe²⁺) that is directly available to plants — prevents iron deficiency and yellowing of leaves. Contains no phosphate or nitrate, promoting plant growth without stimulating algae growth. Safe for fish, shrimp, and all other aquarium inhabitants.

🌿 Product Specifications

🚚 Delivery & Warranty

• Fast delivery from our store — ready to use immediately
• Shipping Tuesday or Friday → Read more about shipping
• Delivery with track & trace, usually within 1–2 business days
• Problem with your order? We will solve it together. Contact our customer service.
• Free shipping from €59,-

✂️ Usage Tips

Add 5 ml per 20 liters of aquarium water weekly, preferably after a water change in an area with good water flow. For heavily planted tanks or fast growth, you can increase the dosage to twice a week. Combine with Sera Florenette (substrate tablets) for complete root nutrition. Monitor iron levels with the Sera FE-Test — ideal value: 0.05–0.1 mg/l.

💡 Tip

Do you have red or fast-growing plants with a high iron requirement? Combine Sera Florena with Sera Flore 2 Ferro for extra iron that is also UV-C stable.

❓ Frequently Asked Questions

Which plants is Sera Florena suitable for?
Florena is particularly effective for leaf feeders such as Anubias, Microsorum (Java fern), Bucephalandra, Bolbitis, and epiphytic mosses and ferns that absorb nutrients through their leaves.

Does Florena stimulate algae growth?
No — Sera Florena contains no phosphate or nitrate, the main nutrients for algae. When dosed correctly, it promotes plant growth without causing algae problems.

What is the difference with Sera Flore 2 Ferro?
Florena is the basic plant fertilizer with iron and trace elements. Flore 2 Ferro provides extra iron specifically for red and fast-growing plants — and is UV-C stable for aquariums with UV equipment.

Do you have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.