I have both Pink and Orange Digi. I don't dose anything or feed except a bi-weekly fish feeding with flake food, but they grow well and keep very vivid colors. The pink has probably grown 5x's the size in a year and the orange got lost under the rockwork for about a month, but is now coloring up very nicely and starting to branch. I believe that the Digi are one of the easiest SPS to keep. I also have a pink cap that has been doing very well. A few other SPS frags are in my possession, but the polyp extension is not the same from them as my Montis