• Jeanne

Susan

1. some zoanthid. 2. possibly anthelia (the bluish one) 3. "honeycombs," if they feel soft - colonial ascidians. Very interesting creatures, sometimes very bright, but most often living on the lower, shaded surfaces of rocks.

Debbie3587

The first (in the red circle) as far as I can see is not Zoanthus but Acetabularia or "mermaid's goblet" - a very beautiful algae, but unfortunately it doesn't last long in the aquarium.

Erica

Yes, it really looks very similar, and there are a lot of them on the rocks. Can you tell me what is in the second photo, between the stones? It looks like an aiptasia, but all the tentacles are the same length.

Aaron6112

look at myrionema amboinensis or here you might find your tenant among them