Hanna Freshwater Alkalinity Checker RO Filters & Media The ReefWave 25 is built

The ReefWave 25 is built to move water differently than a narrow jet-style powerhead

Flow rating: 1876 GPH

It has a highly textured surface and is usually green

Timed pause modes: Useful during feeding

Adding more devices divides the available output and may reduce the flow reaching each line

Hanna Freshwater Alkalinity Checker RO Filters & Media The ReefWave 25 is builtHanna Freshwater Alkalinity Checker The Hanna Freshwater Alkalinity Checker HI775 is a handheld colorimeter for measuring alkalinity from 0 to 500 ppm as CaCO3 in freshwater. It provides a direct digital result for checking buffering capacity, helping freshwater aquarists understand how stable their aquarium water is against pH swings. HI775 Freshwater Alkalinity Testing Freshwater alkalinity represents the waters ability to resist sudden pH changes.