API Copper Test Kit - FW/SW 90 Test Filters any minor cracks

any minor cracks

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API Copper Test Kit - FW/SW 90 Test Filters any minor cracksMaintain healthy levels of copper in your fresh or saltwater aquarium with API Copper Cu+ Fresh & Salt Water Aquarium Test Kit. Copper in small amounts is an essential mineral for aquatic plants and fish. It helps to promote photosynthesis in plants and prevent anemia in fish. Copper is also a common treatment for many parasitic infections. Plants and fish extract copper from aquarium water, so it's important to test levels often to ensure levels are