Based on the recent pic, definitely an LTA like @Taylor t mentioned. He really knows his stuff! Definitely bleached, regardless what your store told you. LTA's don't come in white, but definitely looks pretty good still. I would wait a week before feeding and get the foot more towards the sand. Kill the powerhead flow for 30 mins to a few hours if you have a return pump and hopefully it will attach well between the rock and sand. And just a sidenote: nems host, not clownfish.

