Tests tap water & freshwater aquariums for general hardness (GH) and carbonate hardness (KH).Helps prevent fish stress caused by rapid pH shifts, the result of low levels of KH.
- 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 nat.
- All items are brand new, never worn and never used. We guarantee the authenticity of all items.