Lobo next to clam?

[Z06-Hec]

Is it ok to place my lobo right beside my clam? I've never really seen any activity from my lobo. It has grown an extra head and at night i see the center of each head puff out but other than than, nothing aggressive.

 

[Tab28]

None of my corals have ever bothered any clams i have had over the years. Clams can readjust themselves. If the feel irritated they can sift there position. If it keeps moving itself it is not in a happy spot or happy with its neighbors.