- Location
- suffolk
I have a 150 gal mixed reef system running for 1 1/2 years. Everything was going well until now. I can not keep the alk and ph where they should be. My alk is 5.5, my ph goes from 7.7 in the morning to 7.9 at night. calcium is over 500. Would it be best to drip sodium carbonate to raise bolth alk and ph or kalkwasser?