Not sure specifically but my bubble split on the skeleton, at which point I separated the skeleton and the frag'd piece is growing slowly but surely. Lovely colour by the way, is that the lighting?
I think the pink in my coral is just lightning. This is my 55g old tank with 440w VHO 2 10000k 2 actinics. This lights work very good on 55g now i upgrade this tank to a 125g and i have to see if this coral looks the same or better on three 250W metal halide Blueline 10000K. I keep PH-8.2 8.4 ,Amo., 0- Nitri- 0 ,Nitra.0, Calcium 450ppm, Phosphates 0. Ralhyhp
A fellar in our club was successful fragging his bubble using a dremel tool and some steel nerve's. Playfair is his handle over on ReefCentral. If you wanted to shoot him an email I'm sure he'd be happy to give you some detail.