Sapphire Blue Lake & Pond Colorant - 1 Gallon - Deep Dark Blue Color Treats up to 1 Acre - Combination of Crystal Blue & Blackout Pond Dye- Environmentally Friendly Pond Dye;

Sapphire Blue is a combination of Crystal Blue and Black Out. This mix is 2/3rds blue dye and 1/3rd black dye. This results in a very deep, dark blue. Recommended application is every 30-45 days. Results may vary due to runoff, rain fall, inflow and outflow of water. If you currently have zero pond dye in your water, you may want to double the application rate to ensure proper results.