Aquarium Doctor pH Alkaline control lowers the pH in aquaria and provide a long lasting effect
This treatment improve the water quality for fish that prefer more acidic conditions such as Discus and Rasboras
pH should be monitored with a test kit and maintained between 5 and 9 depending on the requirements. One dose can lower pH to around 6.5, howver this is governed by water hardness and is for guidence only.
How To Use Aquarium Doctor pH Acid Control