I got this coral a week ago and want to make sure that I give it the proper care. Think it's a Cynarina but wanted to be sure. I have it in the lower third of my tank in a lower flow area with 250 halides. It looks like it's losing a little of it's red color and today I saw it spit some white liquid out of it's mouth (zooxanthellae?). It's mouth stay open for a minute then went back to normal. Should I be concerned or is this normal? Thanks.

