Do All Corals Sting?

[thegyft07]

The Subject says it all.


Plus What corals are there that can sit side by side?

I dont want all the corals in my tank seperated so How can I group some?

[loosecannon]

Most Euphyllia spp. can live side by side with no problems.

[kpendarvis]

Cynarinas and Trachyphyllias and others like that can be next to each other as long as they are not so close that the tiny tentacles can tough. You would not want them that close anyway because they would not open properly.
Most of the time the same species of Acanthastrea can touch, but not always.

[stunreefer]

Same species can touch, same genus can sometimes touch.

But yes all corals sting, some only when they touch another coral, while others have "sweeper" tentacles that can extend up to 8" off the coral and sting.