Two Little Fishies pH Balance 225g pH-Balance Marine Aquarium Buffer
The pH of seawater in the open ocean is stable, normally between 8, 0 and 8, 3
due to the carbonate-bicarbonate buffering system.
In tide pools and aquariums the pH can vary more widely due to the influence of respiration and photosynthesis in the restricted bodies of water.
In an aquarium with no illumination it is normal for the pH to drop temporarily due to respiration of CO2 in the absence of photsynthesis.
Two Little Fishies ATLPHB2 Ph Balance Raises both carbonate alkalinity and pH and won’t overshoot the pH too high to maintain your aquarium as close as it can to the ocean.