I need help, my long polyp toadstool coral has lost its color.The cap and polyps used to be a deeper purple color and it’s tentacles were a fluorescent green. Now its polyps and tentacles have paled out or become translucent in color. How do I bring out its original color and open up its tentacles more like the first photo (flower-like).
Would appreciate any advice, please and thank you.

Would appreciate any advice, please and thank you.
