Any ideas about low pH?

[wickedfrags]

The commonts below are accurate. In addition, and as noted previously, keeping pH is consistent is the main concern.

Over my years of reefing I always had a lower pH due to how aggesively I ran my calcium reactor..........it never impacted my corals.

Originally Posted by sphelps

Low pH is usually from CO2 content. Many people who run Ca reactors experience lower pH. Some possible solutions:

• Introduce fresh air by running skimmer air intake to outside air
• Reverse refugium lighting (refugium lights on when tank lights off)
• Supplement Ca and Alk with Kalkwasser or Calcium Hydroxide (reacts with CO2 and maintains high pH)