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PH Adjustment Rock

PH Adjustment Rock
PH Adjustment Rock

PH Adjustment Rock (Freshwater, and Saltwater Aquariums)

The ph Adjustment Rock has 28 trace elements (not strontium) and has plenty of CaCO3 and MgCO3 for all aquarium corals.

When it dissolves, just add more. The sizes are mixed between 1 to 1.5 inches.

The amount of ph Adjustment Rock required to elevate your ph can be calculated according to this formula: What can be easier!

0.5 X gallons = 8.4 ph

0.6 X gallons = 8.6 ph

ph Adjustment Rock will even raise Calcium levels to over 400ppm and elevate Alkalinity levels.


How to use ph Adjustment Rock: This is VERY IMPORTANT! The ph rock MUST be placed directly behind the Tri-Base Pelletized Carbon (TBPC). The reason for this is the acid from the bacteria is the highest level at that point and reacts with the ph rock. If you do not place the ph rock here, the reaction will not be complete. Just hanging it in a bag in the sump will not work. Need more information, visit HDL Online for more Aquarium Saltwater Supplies info.


pH Adjustment Rock 1 Pound $8.70

pH Adjustment Rock 5 Pounds $28.10

pH Adjustment Rock 10 Pounds $45.95

pH Adjustment Rock 34 Pounds $45.10