Pond Flourish Tabs™ help your pond thrive with dedicated nutrition! These tablets provide valuable micro elements, trace elements and nutrients that target plant root zones in decorative aquatic gardens. Easily use one tablet per gallon for potted plants, or one tab for each 6 inch radius of root zone for non-potted plants. With every treatment lasting 3-4 months, Pond Flourish Tabs™ effectively ensure your aquatic plants get the nutrition they need to really flourish! The 30 pack is adequate to treat 30 gallons — no phosphate or nitrate additives, just the superior enrichment your pond desires.