Hi I've had these mushroom corals here for a long time properly over a year. One of them has just shrivelled up today and looks to be torn apart while attached to the rock still. I have had this happen to one or two other mushroom in various places in the tank. All the water parameters are at the same level. No change in lighting or flow. So I'm stumped. The only thing I can thing is the mushroom to the left which is a lot bigger fights with an anemone every so often (and wins the anemone moves away) which could maybe increase the sting from that from effecting this one as they touch more? Or maybe chemical warfare due to how many mushrooms and leathers I have in the tank. Any help would be greatly appreciated. Thanks