i have a 10 gal tank with 1 guppy 2 neons and 2 glowlites. this moring i noticed some bubbles(3-4) on the top of the water, when i tryied to pop them they wouldnt pop, i know that bettas build bubble nests, and i was thinking maybe someone in my tank did, but what else is strange is there is a white goo of the surface of the water.. can anyone help?? they all seem fine and playing around.