Another "What is this?" thread...

[Pete Paschall]

I just fed my tank with a freshly made homemade concoction and saw a few of these tiny

jellyfish-looking things for the first time ever. What are they?

 

[AllSignsPointToFish]

Wow. That's exactly what that looks like...immature jellyfish.

Some corals after spawning but before becoming sessile have a motile stage that resembles jellyfish.

That is pretty darn cool!

 

[Lovemyreef2015]

It's part of the life cycle of a jelly. They will die off in our aquariums.