Question: White Foam!?!?

[Sweet Pea]

I have white foam/ bubbles under my spray bar. Started about 2 inches when I looked at my tank this morning. And it's spreading!!! Here are my perimeters:
http://www.caudata.org/forum/f46-be...trate/109248-first-planted-tank-looks-ok.html

Is this something I should be concerned about? Is it bacteria? How do I get rid of it?

 

[auntiejude]

It's just protein film frothing up under the spray bar.

 

[Sweet Pea]

Lol, thanks. I have been scouring the internet and think that is most likely the reason too. Whew. Well it's good to know those little guys are happy and alive!