You could just rinse it out in some tank water and it wont crash your system. But wet dries have a different type of bacteria which is aerobic and not anaerobic. Anaerobic beneficial bacteria doesn't use air so having the bio balls submerged will basically kill the anaerobic bacteria and your aerobic bacteria will need to catch up. But i'm sure you have anaerobic bacteria in the tank, they multiply so fast I would be surprised if your ammonia goes past .2 ppm. If it does just dose with some prime for a couple days and your cycle will be short.
