I just did the same thing. Took my tank down about two years ago. However for a few months I was good about using old water in my small tank for the water my rocks were in. I had them in a garbage can with a pump for water movement and a heater to keep the temp right. Then we moved again and I just left them in the saltwater with no pump or heat. I just took three rocks out the other day to put in my 29g since I can't find a used 90 corner RR anywhere close. They were super white but just put them right in. I only have one clown fish and a few corals. Nothing has changed on my tank since putting them in. I need to test the water to see if there was any spike in the levels.
Kevin - San Antonio, TX for now, born and raised in Cheviot Ohio.
In the SW hobby since July 02
29gal: Aqua C Remora Pro, DSB, LR, 30" T5ho...... Looking for a RR 54 corner.....