Been there I cleaned my sand bed a too much while back several months and almost crashed my tank.. had 2 pieces go downhill fast mainly lps, one is recovering but my cynarina died.. zoas, leathers and shrooms were upset but bounced back really fast the only ones that lost color and have been recovering were my Palys and they almost getting back to they’re glory lol like 3 months from white to color and they still need maybe 1-2 months more... patience, as they say anything fast in this usually is bad.. sucks but that’s how the cookie crumble.. stay calm and ride the wave let us know how things progress.. good luck