Anyone have an idea as to what kind of Zoas these are?

[Angler02]

This is them under all of my lights.

Here is under the actinics

 

[Homereef]

Eagle Eyes.

 

[Nanook]

Orange ones on the right and green ones on the left Seriously though, the way they are sparsely spread makes me think that something is eating on them, perhaps nudis, sundial snails, some type of capncapoworm, or fish....just an observation that may be all wrong though.