Leather Finger Corals When will you open up??

[xxnonamexx]

I have a 55gal. 260Watt CoralLife Power Compact, 3 1W Lunar Lights, Live sand 4in DSB, 75lbs. Live Rock, 2 Cinnamon Clownfish, Firefish, Magenta Dottyback, snails, crabs, Feather Duster, Sabae Purple Tipped Anenome, 1 White Leather Coral, Red Sun polyp, assorted polyps, 2 Assorted Color Plate Corals, Pipe Organ, Frogspawn, Fox Coral, Flat Brain, Finger Leather, Mushrooms, Green Star Polyps, 2 8" Maxima Clams, Wet/Dry filter, Protein Skimmer, Heater, I have the Liquid Plankton and also frozen plankton and brine shrimp for food.
This is the feisty Leather Coral that has the yellow polyps but hasn't sprouted yet in 2 months looks healthy. Why is it so difficult??
http://www.flickr.com/photos/59422509@N00/

 

[JG]

Check your current. I have noticed that mine is picky - too direct and it won't open. To little and it won't open.

 

[lando]

JG offers a great point. Leather fingers need a higher current. They do sluf off their skin every once in a while and rely on current to help with this process. What type of flow do you have?