The developing world of the Winogradsky column.

February 25 update
It is approximately three weeks since I set up the mysterious Winogradsky columns on a basement counter, facing south, but out of direct sunlight. The room temperature is kept at 65 degrees, however it gets warmer when the sun is shining through the window. I have a habit of sneaking a peek at them on a daily basis hoping for - colors to appear, smells to emanate, movement of some sort, but please no sounds to arise from the glass menagerie.
Column Number 1:
So far, I am able to watch gas bubbles (rather large ones) rising from the depths of the life source, I am not sure if these are CO2, methane, nitrogen or...? Not quite sure how to know at this point and really at any point.
I am not seeing any color changes in the depths of the life source at this point.
There is also algae growing along the sides of the upper 1/3 of the cylinder. There doesn't appear to be any difference from the side of the column facing the window and the far side of the column away from the window.
Most excitingly there is a LOT of life living in the upper 1/3 which is obviously the part I can view. There are numerous worms, these may be hair worms which are exceedingly thin, pink and wiggly. One of the worms is approximately three inches long. The others are approximately 1/4 inch and very lively. There are also hundreds of little white motile microorganisms unknown to me swimming hither and thither. When one of the bubbles floats to the top, there begins a whole hubbub of movement amongst the microorganisms.
Thank goodness there are no sounds! As far as smells, I can't smell anything, nor have I lifted the aluminum foil off of the top.
Something has to be right in here because there appears to be a lot of living going on.
Column 2:
This column sits right next to the first one on the counter.
I find it quite interesting that there is no visible movement.
However, the algae is definitely growing on the side opposite of that which faces the window. I may have to move the column farther from the light as this may be affecting the column's content.
Approximately every minute there is a very tiny, well now there was a gigantic one, bubble that flies up to the surface.
No difference in the lower layers as to obvious color changes. No sounds (phew).
No smell.
Even though there isn't as much action in this column, I have a sneaking position that the microbes are bustling about in the depths of the column.
Note: Today I will move both columns a little further back from the window, to avoid any direct sunlight.