Unsure what this is.

[Holy handgrenade]

I found these weird clear things swimming at the top of my tank today when i turned the flow off to feed my fish. They remind me of jellyfish the way they look and swim. There are about a dozen or so that i spotted so far.

I caught some and took a few pics. Sorry for the crappy photos, tried my best to fix them through filter.

 

[Jekyl]

Hydroids maybe

 

[Holy handgrenade]

Would manual removel be the solution?

Hydroids maybe

 

[Jekyl]

Haven't personally dealt with them