what is this!? looks like mini jellyfish...

[SuperSaltwater]

what is this. it free swims and looks like a jellyfish, it also sits on the glass.
theres a ton in my tank with cope pods, isopods, amhipods etc.

 

[tektite]

Hydroid jellyfish. Great pic of them.

 

[SuperSaltwater]

Hydroid jellyfish. Great pic of them.

nice, came across that name. but couldn't confirm.

 

[cherubfish pair]

They appear rather splendid.