Snails and pods

[Misha]

My alien zoanthid colony (except a few) is closed for a few days now. I noticed there are a lot of pods walking around the zoa’s and a few snails. Can anyone help me id the snails and pods?

The snails:

And the pods (the only guy I could get a decent photo of, the ones on the zoa are greyish and a bit smaller):

The zoa’s:

 

[Coralreefer1]

The snails are called Sundial snails. You need to get rid of them as they eat and kill Zoanthids and Palythoas.
The other is an Amphipod, which is good to have as food source for certain fish and inverts.

 

[Misha]

The snails are called Sundial snails. You need to get rid of them as they eat and kill Zoanthids and Palythoas.
The other is an Amphipod, which is good to have as food source for certain fish and inverts.

I hoped the snails were collinista snails... are you familiar with the removal of Sundial?

 

[Coralreefer1]

Collonista snails are grazers on algae and multiply prolifically which might not be the best scenario for a reef aquarium.
However, they don’t feed on polyps, like Sundials do. And since you were saying that your Zoanthids have been closed for days, one has to believe that Sundials are responsible for this.
I normally just use tweezers or my fingers to remove them. I would then feed them to my Triggerfish.