Osmocote+ root tabs are tank and pond safe for all your fish, and invertebrates such as shrimp and snails!
Directions:
Place one tab in substrate for every 16 square inch (4"x4") where plants are located. For low tech setups place a new tab once every 2 to 4 months to provide essential nutrients. For high tech setups with CO2 injection place a new tab once month to provide essential nutrients while maintaining regular water changes.
* The nitrogen, phosphate, potash, magnesium, sulfur, boron, iron, manganese, molybdenum, and zinc sources have been coated to provide 12.7% coated slow-release nitrogen (N), 7.6% coated slow-release available phosphate (P2O5), 10.2% coated slow-release soluble potash (K2O), 1.1% coated slow-release magnesium (Mg), 5.1% coated slow-release sulfur (S), 0.015% coated slow-release boron (B), 0.35% coated slow-release iron (Fe), 0.05% coated slow-release manganese (Mn), 0.015% coated slow-release molybdenum (Mo), and 0.015% coated slow-release zinc (Zn)