Seachem Flourish – Comprehensive Trace Supplement for Freshwater Plants

Feed Your Plants the Micronutrients They're Missing

Your freshwater plants can look pale and sluggish even in a well-lit tank, because the trace and micro elements they depend on quietly run out. Dosing the wrong products just overloads micronutrients while chasing macros.

Seachem Flourish is a comprehensive plant supplement for the natural freshwater aquarium, delivering a rich assortment of micro elements, trace elements, and other nutrients including calcium, magnesium, and iron. Unlike products that cram everything into one bottle and overdose micros to raise macros, Flourish is designed to work alongside targeted macro supplements so you dose exactly what the tank needs. It's safe for invertebrates such as shrimp.

Flourish is made by Seachem Laboratories, the chemistry-driven aquatics company founded in 1979 in Madison, Georgia, where in-house chemists develop every formula. As the comprehensive supplement at the heart of the coordinated Flourish planted-tank system, it provides the micro and trace foundation that pairs with Flourish Excel for carbon and with targeted nitrogen, phosphorus, potassium, iron, and trace dosing.

1. Add Flourish to supply micro and trace elements your plants use up.
2. Pair it with Flourish Nitrogen, Phosphorus, or Potassium for macro (NPK) fertilization as needed.
3. Watch plants green up and grow with balanced, complete nutrition.

Give your planted tank the full spectrum of nutrients it needs. Add to cart.

What It Does

A comprehensive supplement providing important micro elements, trace elements, and other nutrients including calcium, magnesium, iron, and other elements shown to benefit aquatic plants. Designed to be used with separate macro and micro-nutrient supplements. Safe for invertebrates such as shrimp.

Why Seachem Flourish

• Comprehensive core of the Flourish system: the central micronutrient supplement the coordinated planted-tank line is built around.
• Bioavailable micro and trace elements: supplies calcium, magnesium, iron, and a rich assortment of trace nutrients in forms plants can use.
• Fixes micronutrient depletion: restores the trace elements that quietly run out and leave plants pale and sluggish even under good lighting.
• Designed to be paired, not overdosed: works alongside separate macro supplements so you dose exactly what the tank needs instead of overloading micros to chase macros.

Best For

Ideal for low-tech planted tanks as a complete micronutrient base, and equally suited to high-tech setups where it slots in alongside dedicated NPK dosing. Best for plants showing pale, sluggish growth from trace and micro-element deficiency, and safe for shrimp and other invertebrates.

FAQ

How does this fit with the rest of the Flourish line? Flourish is the comprehensive micro and trace supplement of Seachem's coordinated planted-tank system, meant to be used with separate macro supplements like Flourish Nitrogen, Phosphorus, and Potassium, plus Flourish Excel for carbon.

Do I still need a macro fertilizer? Yes. Flourish focuses on micro and trace elements and is designed to work alongside targeted NPK supplements so you can dose macros and micros independently.

Is it safe for shrimp and other invertebrates? Yes, Flourish is safe for invertebrates such as shrimp when dosed as directed.