Just stopped by the local HD here in Rochester NY and they had 3 pallets of SD. Yes, with the southdown name on it. Now, for a question, and if there is a thread please point me there because southdown creates WAY too many threads to read. I have a 55 with CC, 60lbs LR, 4 fish, and some leathers that is doing good. I bought 3 bags of SD to replace the CC. What exactly it the best process to replace the CC with the SD? I will scoop out the CC and re-arrange the rocks but I am most concerned with introducing the SD to an established tank. I understand you don't want to rinse it (which goes AGAINST everything I have been taught!) and I was thinking about using a piece of 4 inch pvc to funnel it to the bottom, but what am I in for? What am I getting myself into and could I do anything differently? Thanks, and reef central has been a godsend to me. Seems like every LFS has a different opinion on what this fish will behave like with that one, or what filter to use and whatnot. Like I said, thanks for all the dedication and knowledge you guys/girls add to this forum.