I'm not complaining at all, but I have no coralline in my tank even at the 1 year mark. I did start with totally dead rock, scrubbed the heck out of any shelled animal coming in, and always removed frag plugs before putting a piece in (of course after dipping). I wasn't specifically avoiding it, but I've had a few tanks in the past and always got some coralline in the system. Parameters check out, SPS are growing. Anyone else coralline free? I think it's kind of nice not dealing with scraping it off of everything and needing to constantly maintain pumps.