Calcium Checker - Colorimeter - Hanna InstrumentsAlways get accurate results for your saltwater aquarium with our handheld colorimeter. Our saltwater calcium colorimeter fills the gap between calcium test kits and advanced instrumentation. Standard test kits have limited accuracy as they depend on the human eye to determine colors. Our handheld colorimeter eliminates the trouble of matching to a color chart by providing a direct saltwater calcium result in ppm Ca2+. Our portable handheld colorimeter

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Equipped with a controllable Reef Octopus VarioS-4S pinwheel pump with the integrated memory controller

The Coral Grow model brings a powerful and balanced blue and white growth spectrum with output in the deep blue through blue range (400-500nm) to address the photosynthetic needs of corals

Multi-stage filtration: 50% filtration surface

11 Watts of Quiet and Energy EFFICIENT Operation

it ensures safe handling

Two models simple

this 110ext is a recirculating external protein skimmer that will provide great performance with the enhanced control for marine aquariums up to 130 gallons

XP 3000INT/EXT/SSS

*Blade LED fixtures sold separately

The Super Reef Octopus 7000ext is light commercial protein skimmers with a body just under 16 inches and standing only 32

Removable Turbulence Reducing Bubble Plate