Hi, what are you useing for substrate? crushed coral or Live sand??I myself added rock with the water at the same time, everyone does it alittle differant. and cycle was fairly fast, did recycle tho when took out cc and added ls and more lr, had nitrate problem with cc thats why we went with deep sand bed. do you plan on adding all live rock at once, you dont have to worry about ammonia spike every time you add more rock if you do it all at once but this can be expensive, If you do it piece by piece do it slow or you could have an ammonia spike each time because you will have some die off when you get your rock..hope this helps...