What is it and who what's it? (Edm)
 

I've been calling it Colt but seems lots of different things are called Colt. Either way got a bunch to give away, NE Edmonton.

http://i67.photobucket.com/albums/h316/das75/colt.jpg

I have one similar and I'm pretty sure it's a kenya tree coral. Like you said, there's lots of colt corals that are the same look, and could be one. They are actually pretty cool softies that aren't super invasive.

http://www.reefs2go.com/product/C-KE...ree-Coral.html