This might help.......IMO
Method B: Curing process of live rock for the new aquarium that DOES NOT contain fish, corals, or any other marine animals.
Live rock may be used to cycle a new marine aquarium. Follow the manufacturer's directions on the installation of all filtration devices and accessories. Fill aquarium with freshly mixed saltwater with a specific gravity of 1.023-1.025. Activate all filtration equipment, check for leaks, and set heater and/or chiller to the desired temperature of 72-78°F.
Note: Mechanical filtration will need frequent cleaning during this cycling process.
Rinse each piece of live rock in a small bucket of saltwater to remove any loose organic matter, debris, or sand.
Place live rock into the aquarium to create a stable foundation for corals or decorations.
Keep the lighting system off during the cycling period in order to reduce the likelihood of undesirable algae growth.
Gently scrub the rocks periodically with a new nylon bristle brush or toothbrush to remove loose white film or dead material.
Perform 50% water changes weekly while siphoning out any organic matter and loose debris that accumulates at the bottom of the aquarium.
Measure and monitor the ammonia and nitrite levels in the aquarium weekly.
When both ammonia and nitrite levels are zero, perform a 50% water change on the aquarium.
After 24 hours, check the pH of the water and adjust as needed to achieve the desired level of 8.1-8.4.
Most aquariums will cycle within 2-4 weeks using this technique, depending on the equipment that is installed.