Jellyfish looking things

[mikalis]

I woke up this morning and found these thingys swimming around in my tank that I have never seen before. Best way I can describe them is they look like little jellyfish swimming around. I tried to make a video but not very good but it is attached see if you can see what it is I am talking about.

 

[SushiGirl]

Probably hydroid jellyfish. There are a couple of different kinds.

 

[truebeliever71]

probably hydroid jellyfish. There are a couple of different kinds.

+1 ...

 

[mikalis]

all I know is they are there when I turn on the lights in the morning and the longer the lights are on the less I see them.