Cut Digitata?
 

I have a plain brown Digi in the center of my tank, and he's grown quite large. Wondering can one just slice off the excess in the tank? he's on a main keystone rock that will be almost impossible to remove without complete tank upset

Atleast I think it's a Digi? Kinda softish skeleton. Not like Zoa's or mushrooms soft, But can bend him Kinda.
Can see him here in center of tank. Sorry bad pic
http://sphotos-b.ak.fbcdn.net/hphoto...84185696_n.jpg

Yes. People frag SPS corals all the time.

Go ahead and snap off whatever you dont want.

a digi would be hard and in most cases quite brittle. If the skeleton is soft at all you're not dealing with SPS?

If you can bend it I don't think it's sps.
My guess is a leather

+1. I think it is a finger leather. You can just slice it in the tank no problem and use an elastic band to attach it to a rock if you want to frag it. Run some carbon after you do it if you want to be on the safe side but you will be fine without it.

OK Finger leather sounds more like it cause I've never had luck with SPS in m y tank. This one came with the tank 3 years ago. Was 1/4 the size then LOL

The problem with cutting leathers is the toxins they release in the water.

I wouldn't do it without running carbon in a reactor first.