Droopy Toadstool

[Fish_Fingers91]

Hi guys, just wanting some advice on my toadstool.. noticed over the past few months that it's making its way down the back of my weir. (The coral came with the tank, second hand)
It used to be above the small ones but has now 'drooped' its way down.
My clowns still huddle up behind it on a night but I'm not sure what has caused the migration. No changes in parameters.. could it be that its head is getting too heavy? It still opens up nice when the lights are on.. but on a night it looks like an old man, fresh out of the bath!

Sorry about the photo bombers.. they are not camera shy!!

 

[GeoSquid]

I have a clump of what looks like the same type of toadstool. Mine would travel all over the rocks and leave babies but never seemed to get very big. One day all of them on same rock started to slump and hang down. This went on with them hanging down for months and then they righted themselves. Then, about 6 mos later they all slumped again and they've been hanging like that for about 5 months. I moved one of them to the other side of the tank and it has stayed hanging like the others. The babies they left behind and are standing up fine. The heads look decent but the stalks are long and thin. I have two other green toadstools that are much bigger and growing great along with a some other leathers and sps. Not sure what their deal is.