Osmocote Fertilizer (10)Capsules for Aquariums

What They Do

Osmocote capsules are slow-release root fertilizers that provide essential nutrients directly to your aquarium plants. They support stronger roots, vibrant growth, and healthier aquascapes.

How to Use

1. Preparation

   • Make sure your substrate is at least 2–3 inches deep.

   • Works best with rooted plants (Amazon Swords, Cryptocoryne, Lotus, etc.).

2. Placement

   • Push each capsule 1 inch (2–3 cm) below the substrate, directly under or near plant roots.

   • Avoid leaving capsules exposed on the surface.

3. Dosage by Tank Size

   Aquarium Size	Light Planting	Heavy Planting / Root Feeders
   Up to 10 gal	2–3 capsules	3–4 capsules
   10–20 gal	4–5 capsules	6–8 capsules
   20–40 gal	6–8 capsules	10–12 capsules
   40–75 gal	10–12 capsules	15–18 capsules
   75+ gal	15–20 capsules	20–25+ capsules (spread evenly)

   💡 Tip: Adjust for fish load — heavily stocked tanks may need fewer capsules since fish waste adds nutrients.

4. Frequency

   • Capsules release nutrients slowly for 2–3 months.

   • Replenish every 8–12 weeks or when plants show signs of nutrient deficiency (yellowing, slow growth).

Ingredients (NPK 15-9-12 + Micronutrients)

• Nitrogen (N): Encourages leafy growth

• Phosphorus (P): Supports root development

• Potassium (K): Boosts plant health and color

• Magnesium, Sulfur, Iron: Essential for chlorophyll and photosynthesis

• Trace elements (Mn, Cu, Zn, B, Mo): Support overall plant vitality

Extra Tips

✅ Place directly under heavy root feeders for best results.
✅ Use fewer capsules if your tank is lightly planted or heavily stocked with fish.
✅ Combine with liquid fertilizers for stem plants, mosses, and floating plants.
✅ Avoid overuse — excess nutrients may cause algae blooms.