Help with toadstool...updated pics
 

My leather toadstool has not opened in weeks and the last two days started showing these white spot. Please have a look at the photos and let me know what this could be and what I should do.

It's getting worse now...new pics added

Our toadstool did the same thing. It was fighting with another coral in our tank, we ended up having to put the toadstool in our friends tank and in his tank it made a complete recovery. I think it was fighting with our frogspawn coral

it's in a spot away from other corals, so I do not thing it is fighting with others.

The frogspawn and the toadstool were on opposite sides of the tank (in a 65g tank) I'm not 100% sure it was fighting with the frogspawn but the toadstool started looking bad soon after adding the frogspawn. The toadstool we had was on a rock by itself not touching any other corals and our friends tank (that the toadstool recovered in) has most of the same corals as us with the exception of frogspawn. We have carbon running in our tank to prevent cemical warware however it didn't help our toadstool.

:sad:

This may sound wierd and risky but, I would take it out, scrape/cut away any part that looks questionable, cut it in half, put the two back in the tank in different places. This should trigger a "fight or flight" response, with one or both of the pieces bouncing back and healing fast. Or, they could both melt away, in any case, it's a do or die way.

I second the Frog spawn theory, how far is far ? tenticles can go long way with the curent...

My yellow leather had exactly the same sting from the frag spawn had to move it away.
Small water change, little iodide and carbon filtration did the trick in my case.