Thrive Caps Substrate Vitalizer

Aquarium Thrive Root Tabs

Thrive Caps are premium root zone fertilizer capsules designed for planted aquariums. Each container includes 60 nutrient-packed root tabs formulated to support strong, healthy plant growth.

These capsules are a powerful substrate additive, delivering essential macro and micro nutrients along with key minerals directly to plant roots—right where they need it most.

New & Improved Formula

Thrive Caps are an upgraded version of the original Thrive Tabs, featuring several key improvements:

• More concentrated formula – Smaller capsules with no binding additives, delivering the same powerful nutrient levels in a more efficient form
• Cleaner performance – Redesigned to significantly reduce water clouding compared to previous versions
• Enhanced root nutrition – Optimized blend for stronger, healthier plant development

Each capsule contains a balanced mix of dry Thrive nutrients, iron-rich clay, and mineralized topsoil—making them one of the most effective root tabs available for freshwater planted tanks.

How to Use

• Insert one capsule at the base of each plant
• Or space capsules evenly every 5–6 inches in a grid pattern
• Push deep into the substrate for best results
• Replace every 3–4 months or as needed

Guaranteed Analysis

• Total Nitrogen (N): 2.57%
  • 2.57% Water Soluble Nitrogen
• Available Phosphate (P₂O₅): 1.69%
• Soluble Potash (K₂O): 10.1%
• Magnesium (Mg): 0.40%
  • 0.40% Water Soluble Magnesium
• Sulfur (S): 0.31%
  • 0.31% Combined Sulfur
• Iron (Fe): 2.47%
  • 2.47% Water Soluble Iron
• Manganese (Mn): 0.161%
• Zinc (Zn): 0.0055%
• Boron (B): 0.014%
• Cobalt (Co): 0.0006%
• Copper (Cu): 0.0001%
• Molybdenum (Mo): 0.00029%
• Nickel (Ni): 0.00035%

Ingredients

Potassium Nitrate, Potassium Phosphate, Potassium Sulfate, Magnesium Sulfate, Boric Acid, Iron DTPA, Iron EDTA, Ferrous Gluconate, Manganese Sulfate, Zinc Sulfate, Cobalt Sulfate, Sodium Molybdate, Nickel Chloride, Iron-Rich Clay, Mineralized Topsoil.

Note: Information regarding heavy metal content is available through the Association of American Plant Food Control Officials.