Fritz Mardel Coppersafe

About Fritz Coppersafe® Fritz Coppersafe® solution remains active for over one month in the aquarium. It is a safe, stable, non-staining concentrate that does not color aquarium water. Be sure to add Fritz Coppersafe® solution to replacement water when water changes are made. This will maintain the therapeutic level of Coppersafe® solution. Because Fritz Coppersafe® solution is so stable in water, partial water changes are the quickest way to remove it from the water. The unique formulation of Fritz Coppersafe® solution maintains a total copper level of  ~2.0ppm when used as directed. Copper test kits that measure chelated copper will help you to actively monitor copper levels when using Fritz Coppersafe® solution. Directions & Dosage Use 1 tsp/5 ml per 4 U.S. gallons (15 L), 1 cup (8oz) per 190 U.S. gallons (337.5 L). Treats water for one month. Treat replacement water. Special notes on Coppersafe® solution: Copper levels are commonly measured as free or as total copper