I have a mixed reef, acros which grow fine, encrusting monti and caps that grow fine and other sps. I'm having issues with digitata, the green grows well then fades then comes back. forest fire just doesnt grow and a bubble gum, that has died, fragged the live parts off, they lived got color and showed growth. lights come on and i look around, one of the bubble gums are dead. is there any tips you can give me for digitata care? something I can try?