Amazon kH Buffer
(for discus, L Number cat fish & apistogrammas)
 
Amazon kH Buffer helps emulate the water from the Amazon Basin by raising carbonate hardness without compromising the slightly acidic pH required for fish that come from this region, such as discus, tetras, apistogrammas and angel fish.  It raises carbonate hardness and locks in pH to approximately 6.5 to 6.8, stopping pH fluctuation, creating pH stability and reducing stress on fish.
Directions:
 
Add 1 teaspoon by measure to 8 litres of water to raise carbonate hardness by approximately 6dkH (105ppm)