Yellow Watchman Goby protein skimmer it can cause irregular readings

it can cause irregular readings and using Hanna's Deionized Water will help prevent that from happening

The High Range Colorimeter gives greater precision over previous models and gives you a digital reading on a large LCD display

We have run density tests and they have proved to be more porous than any live rock we could find

Promotes healthy coral growth difficult to obtain without supplementing

including reef tanks

Yellow Watchman Goby protein skimmer it can cause irregular readingsCare Level Easy Temperament Peaceful Diet Carnivore Reef Safe Yes Water Parameters Salinity 1. 020 1. 026 Temperature 72 78 F dKH 8 12 pH 8. 1 8. 4 Max Size 4" Minimum Tank Size 30 gal