Curing old rock

[Wagonpitt]

Have some rock in salt water for a while now. Like 5 months+ No powerhead no heater. If i change the water, add a power head and heater and let it sit for a month or so i should be good right. Moving from 90g to 135g and want to add this to the rock i already have.

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[mcgyvr]

Its probably "Good to go" now..
Its been in saltwater for 5+ months.. There is plenty of bacteria in/on that rock and any decomposing organic has had time to be processed by now..

 

[reefgeezer]

Likely good to go. Check phosphate levels several days after changing the water to see if the rock is leaching. Adding a very small amount of an ammonia source and then testing ammonia & nitrate will let you determine if the rock is cycled.