Tiny bubbles in cycling tank

[ECH2005]

I came home today to see little tiny bubbles all around the edge of the top of my tank, and a bunch circling in the middle. The filter seems to be shooting these bubbles out (its rather soothing to watch ) and I'm wondering what they could be coming from. I'm doing a fishless cycling, using pure ammonia, and this is the first time these bubbles have shown up. Are they just airbubbles, and should I just turn down the flow a little? Or is the "pure" ammonia not as pure as it claims?

 

[bluefire]

my tank always has them they are just air bubbles it wont affect your fish, they are actually good because it means you have good airation

 

[modernhamlet]

Check your water level. I'm guessing a little of the water has evaporated from the tank and the outflow from the filter is falling just a little further into the water, creating the bubbles. As bluefire says, aeration is good.

 

[yvez9]

I got that in my tank too. as modernhamlet recommends, add water and they will go away. Though you need oxygen in your water so don't overdo it!

 

[ECH2005]

K, thanks everyone, I just wanted to make sure.

Yeah, the water level has probably dropped, its really dry in my house so water evaporates pretty fast. I usually have to add a cup or so of water to my 2.5gal every few days in between water changes...