Forrest fire Rhodactis Mushroom spot

[DonJuanAntwon]

Can anyone tell me what’s going on with my Forrest fire Rhodactis mushroom? This white looking spot appeared about a few days ago and looks like it’s getting bigger. Is it getting too much light and scaring? I have it at the lowest point of my tank with minimal flow. (Ammonia 0 / nitrite 0 / nitrate 10 / Ca 440 / P 0.02)

 

[KrisReef]

Is that shroom elongating along the same access and getting ready to divide into 2? (That white area is the 'mouth'.)