Possibly, especialy if you transfer an established sand bed. To avoid that, use new, rinsed aragonite sand and seed it with a couple of scoops of your current sand bed. When moving the rocks, blast them with a powerhead to dislodge any trapped detritus, then rinse them in a bucket of tank water. Have freshly mixed salt water on hand, along with your test kits. Check params and do water changes if needed.