Help needed

[raj]

My pH has gone down to 7.4. I did topp up the tank to compensate for the evaporated water by adding chlorine free Fresh water yesterday
How do I fix the pH?

 

[jonthefishguy]

Add Superbuffer-dkh to the tank every night just before the lights go out. Check the PH just before the lights go out because that is when it will be at its highest peak. To continue to keep the PH up, use kalkwasser in your top off water. it will keep the PH and alkalinity up. Remember to drip it in slowly as it will raise the PH too high if you drip it too fast.