GH & KH General & Carbonate Hardness Test Kit - Freshwater Tropical Fish FX6 is the high-capacity workhorse

FX6 is the high-capacity workhorse of Fluval's canister lineup

tannin stained water

platinum white betta is considered a unique and high-grade variety of the popular variety of the betta plakat body type

reptiles or amphibians

The odor reducing pad in combination with the dual carbon pads ensures maximum ammonia absorbing capabilities

GH & KH General & Carbonate Hardness Test Kit - Freshwater Tropical Fish FX6 is the high-capacity workhorseGH & KH General & Carbonate Hardness Test Kit Freshwater Tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps detect stress on fish caused by rapid pH shifts, which result from low KH levels and helps aquarists duplicate the natural habitat of their fish.