Mushy Chaeto

[Johnny Reefer]

Went to rotate the two balls of chaeto in my 'fuge around and discovered that, although most of it is still "brillo pad" like, some of it is sort like hair algae and kinda mushy to the touch. The mushy part also has a whitish tinge.
Anyone seen the likes of this and know what it might be indicating, if anything?

It's the 'fuge on my FOWLR. The reef chaeto is fine.

Thanx much,