Epsom Salt, Reef Safe Except Sponges?

[MasonK24]

Just an observation from my own trial, i dosed 1Tbs per 5 gallons as directed of pure USP Epsom Salt. Corals and fish are completely fine but my pink sponge is looking super rough. shunk half the size since last night. Anyone ever had this happen before that would like to chime in and confirm my suspicions? Would it be the Mag or the Sulfate?

Epsom Salt is widely known to be reef safe but maybe we could warn anyone with sponges that they may be affected before they use it.

 

[P-Dub]

Might ask @Randy Holmes-Farley

 

[MasonK24]

Also would like to add that ive had this sponge for over 3 years and nothing ever hurt it the way that it is now. Epsom salt is the only factor that couldve changed it.