Insert each slow-release capsule deep into substrate with tweezers near the base of rooted plant 5-6 inches apart or as needed. Replace tabs after 1-2 months. Use in tanks with at least 1 inch of substrate. Insert tabs deeply into substrate or they will float. Recommended for tanks over 10 gallons. Maintain weekly water changes and chemistry testing. Promotes strong root development for lush plants in freshwater aquariums Contains essential nutrients Vacuumed sealed in packs of 25 to preserve freshness and keep moisture out Feeds up to 1 month Gelatin Capsules Capsule Size 00 Capsule weight: 1 gram +/- 0.2 grams Vacuum sealed in packs of 25 Osmocote Blend