GH/KH+ is a blend of minerals and trace elements designed to safely increase total hardness (dGH) and carbonate hardness (KH) at a ratio of 1.0/0.5. Suitable for critters that are kept in neutral to mildy high pH water condition.
Add 2g / 10L to raise GH to 6dGH (300+/-50uS) in RO water or desalinated water, before adding or using in Aquarium. 1 level spoon (provided) contains ~2g. Aquarium use only. Always keep dry, close lid after use.