I keep 8 discus in a tank of 4x18x18 but i can not keep my water ph constant i try to keep it around 6.5 but it keeps dropping, how can I stop this happening and keep it constant at around
6.5
Reply:
The pH will drop because of the decay substances.
The dropping of pH is gradual; your fish can take or adjust it.
Regular changing water partially, you will keep your pH constant.
