Darn horn corals

[Delphinus]

I've kept both the encrusting and branching, but, I found that they would sort of choose whether they were encrusting or branching. I lost my last piece in the start of the fall of my SPS a couple years ago. I didn't really notice any sensitivity issues with it up to that point. In fact, it was generally an easygoing fast grower - to the point where it was a bit of a problem, in fact, due to how aggressive it is - I lost a lot of other corals to its little "digest my neighbours" trick. Actually, it was so aggressive, and fast growing, that I sort of resolved not to get anymore. As pretty as it is (at least you can sure get some unreal glowing green types), it's just a little too aggressive for my liking. Although I suppose in a larger tank where you can have a buffer zone around it maybe it would be OK.

So .. I'm not sure why the encrusting one in your tank would be more sensitive like that.. maybe you've just gotten some fussy ones?

Sorry, guess I'm not much help here....