Will a Marine Betta eat my Ocellaris Clownfish ? ? ?

I currently have 4 Ocellaris Clownfish in my 55 gallon tank. I have a pair of orange and a pair of the black and white. All are currently a 1.5" long and live together with no problem. They all swim around the tank together like best friends. I have a really awesome cave set up in my tank. I was totally proud of how well it came out when I assembled it. BUT my clown fish don't go in or even near it. so I was thinking about getting a marine betta. something that will take advantage of the cave I have made. my question is will the betta eat my Ocellaris Clownfish ? ? ?