Hanna Magnesium (HI783) box LifeRock Large Arches add open

LifeRock Large Arches add open dimension to large marine and reef aquariums with plenty of swim space and area for coral placement

Why Test Alkalinity

So forget the idea about injecting aiptasia anemonies products that do not work

• Made in the USA of US-sourced

The Vectra pump will always operate at the optimum efficiency because there is no need to use a flow restricting valve to achieve your desired flow rate

Hanna Magnesium (HI783) box LifeRock Large Arches add openThe HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer Lambert principle to determine the concentration of magnesium colorimetrically. The HI783 is designed specifically to measure magnesium levels in a saltwater aquarium or in marine biology applications. The 1000 to 1800 ppm range is ideal for coral fish or fish only aquarium maintenance. Ideal for aquariums and marine biology Easier to use and more accurate than chemical