Hi - After a 30 year break, I’m back in the reefing game. Backgound; transferred an existing 100gal basic reef setup w/livestock & equipment. Tweaking & upgrading a few things and started building up the inhabitants. The green mushroom from a local, reputable store doesn’t look right to my amateur eyes after two weeks. He’s ~2’ below a Kessil 360x in a medium flow area attached to his original rock piece. All other softies are doing just fine. Water parameters are good using Coral Pro salt. Help??