Bubble nest or not?

[FeldmansFish]

Recently I was doing a water change on the 10g with the dwarf gourami, and found this at the surface. I'm pretty sure it's a bubble nest (I've been comparing this with images of bubble nests online) .

 

[Upacreek]

Definitely a bubble nest!

 

[FeldmansFish]

Yay! Haha if only I had a female