Tetra PH/KH Plus 300mls

Tetra Pond pH/KH Plus simple way to increase carbonate hardness (KH), for a stable pH and healthy pond environment a carbonate hardness (KH) level of between 4° and 10° dH is recommended, to prevent harmful changes in pH KH is lost over time, due to natural biological processes in the pond especially beneficial in soft water areas; following long periods without water changes; or following heavy rainfall we especially recommend the use of pH/KH Plus in ponds that are densely populated with plants and fish and in koi ponds as carbonate hardness levels in these ponds can more easily fall to critically low levels KH can be checked using a Tetra Pond 5in1 test kit.