Mushroom Compatibility + Mushroom Rock

[FishNutty]

I've got St. Thomas Mushroom (Discosoma sanctithomae), Hairy Mushroom (Rhodactis indosinensis) and some smooth Discosoma varieties, and I'm wondering about compatibility, because I'd like to put them all together on a rock, and as they spread I imagine they'll eventually be touching.
Any advice?

 

[rjmurd]

They are all fine together, but I would give the hairy mushroom space so that it does not inflate and try to cover the others. I have kept all three together and never had an issue.

 

[JPF]

The hairies do get big when happy but they are very beautiful (usually).