Possibly a Hydrozoan?

[Mr31415]

As I was busy poking around in my reef aquarium for things to photograph, I found these 8mm long structures attached to the inside glass panes, looking like small protrusions hanging out in the water column. Obviously I took one and placed it under the microscope. This is an absolute gorgeous animal, especially when I "turned on the lights" so to speak.

But I have no idea what it is! Any ID? I am sure it is a predator, it seems like the bulbous tentacles are used to catch prey? In one of the photos it is clear it had ingested a copepod.

4x, slightly cropped, BF

4x, slightly cropped, FLUO-C4

10x, DIC

10x, FLUO-C4, ingested copepod

20x, FLUO-C4, looks like tiny little light bulbs under UV/Blue excitation.

 

[SushiGirl]

Since my eyes don't magnify that much, I couldn't tell you what it is from that much of a closeup LOL. Based on the structure, it could be.